Black Horehound (Ballota nigra)

What is Black Horehound?

Black horehound is best known for its offensive odour — which resembles stale sweat.

Despite the unfortunate smell of this mint-relative, it has a lot to offer therapeutically.

Black horehound is one of the oldest medicinal herb species from Europe. It has a long history of use for infectious diseases including rabies and parasites, as well as for nausea and vomiting caused by neurological disorders.

This herb is a bit of a jack of all trades — but master of none. It offer reliable nervine, antispasmodic, antimicrobial, and anticholesterolaemic effects — all thanks to five unique phenylpropanoid glycosides contained in the leaves, stems, and roots of the herb.

What is Black Horehound Used For?

Many of the tradition uses of the herb have yet to be validated. The primary traditional uses for the herb that still stand today are for treating motion sickness or other causes of nausea or vomiting of neurological origin.

This herb is also still used as an antimicrobial for the digestive tract and topically on the skin.

Newer applications for the herb are aimed towards high cholesterol levels and diabetes.

Traditional Uses of Black Horehound

Black horehound was used for a lot of different applications. It was also a common remedy for motion sickness or any vomiting caused by neurological origins (rather than digestive).

Topically, the leaves were used to treat wounds, burns, and infection. Some herbalists even gave the herb as an enema for parasitic worms.

In Europe, where the herb originated from, the flowering tops were used to treat rabies after getting bitten by a rabid dog.

Herb Details: Black Horehound

Herbal Actions:

• Antibacterial
• Anticholesterolaemic
• Antiemetic
• Antifungal
• Antioxidant
• Antiprotozoal
• Antispasmodic
• Expectorant
• Hypoglycaemic
• Nervine
• Sedative

Weekly Dose

• (1:2 Liquid Extract)
  10 20 mL
• View Dosage Chart

Part Used

Flowering Tops

Family Name

Lamiaceae

Distribution

Europe & North America

Constituents of Interest

• Verbascoside
• Forsythoside B
• Arenarioside
• Ballotetroside
• Malic Acid

Common Names

• Black Horehound
• Black Stinking Horehound
• Fetid Horehound
• Stinking Roger

CYP450

• Unknown

Pregnancy

• Avoid black horehound if pregnant or breastfeeding

Duration of Use

• insert

Botanical Information

Black horehound originated from Europe but is now widespread across North America as well. The herb can grow over 1 meter tall and tends to grow on the side of the road in rural areas.

What this plant is best known for is its disagreeable odor — which can be described as stale sweat. The Greek name, ballo translates to “getting rid of”, or “throwing away”. This smell protects the herb by repelling both animals and humans.

Pharmacology & Medical Research

+ Anticholesterolaemic

One of the major causes of atherosclerosis is the result of oxidization of low-density lipoproteins LDL) [1].

Some of the phenolic compounds in black horehound (verbascoside, forsythoside B, arenarioside, and ballotetroside) were found to inhibit LDL oxidation through Cu2+ pathway [2].

+ Antimicrobial

Five phenolic compounds from black horehound were investigated to explore their antimicrobial potential. Of these five, three (verbascoside, forsythoside B, arenarioside) were found to have moderate activity against Proteus mirabilis, Salmonella typhi, and Staphylococcus aureus [3, 4].

Another study looked at the antimicrobial effects of each part of the plant (leaves, roots, and stems). The results suggested the crude extract of the roots had the best inhibitory activity on the strains tested (Enterococcus faecalis, Escherichia coli, Klensiella pneumonia, Proteus miribalis, Salmonella typhi, and Staphylococcus aureus, Aspergillus fumigates, Aspergillus niger, Fusarium solani, and Leishmania) [5]. The leaf and stem chloroform extracts had similar antimicrobial action.

+ Sedative

Phenylpropanoid compounds from black horehound were found to bind to benzodiazepine, dopaminergic, and morphinic receptors in animals [6, 4]. This provides a mechanism of action for the traditional sedative uses of the herb — but more research is needed to further elucidate these findings.

Phytochemistry

The flowering tops (the part used medicinally) are rich in diterpenoid lactones (labdane type) — such as ballotenol, ballotinone, 7alpha-acetoxymarrubiin, hispanolone, and preleosibirin.

The tops are also rich in phenolic compounds (luteolin-7-lactate, luteolin-7-glucosyl-lactate), phenylpropanoid glycosides (verbascoside, forsythoside B, arenarioside, ballotetroside), organic acids (quinic acid), and volatile oils.

Cautions & Safety Information:

Black horehound is considered a safe herb, with little chances of experiencing any side effects.

Allergies to the herb have been noted, so caution is advised if using the herb for the first time. Always start with a small amount first to see how you react before using a full dose.

Black horehound may interact with the following medication classes:

• Antipsychotic medications (overlap in receptor activation)

• Anti-Parkinson’s disease medications (overlap in dopaminergic action)

• Sedatives (overlap in sedative effects and benzodiazepine receptor activation)

• Iron supplements (black horehound has been suggested to prevent the absorption of iron)

Author:

Justin Cooke, BHSc

The Sunlight Experiment

(Updated March 2020)

Recent Blog Posts:

Featured Herb Monographs

References:

[1] — Steinberg, D. (1997). Low density lipoprotein oxidation and its pathobiological significance.

[2] — Seidel, V., Verholle, M., Malard, Y., Tillequin, F., Fruchart, J. C., Duriez, P., ... & Teissier, E. (2000). Phenylpropanoids from Ballota nigra L. inhibit in vitro LDL peroxidation.

[3] — Didry, N., Seidel, V., Dubreuil, L., Tillequin, F., & Bailleul, F. (1999). Isolation and antibacterial activity of phenylpropanoid derivatives from Ballota nigra.

[4] — Al-Snafi, A. E. (2015). The Pharmacological Importance of Ballota nigra–A review.

[5] — Ullah, N., Ahmad, I., & Ayaz, S. (2014). In vitro antimicrobial and antiprotozoal activities, phytochemical screening and heavy metals toxicity of different parts of Ballota nigra.

[6] — Daels-Rakotoarison, D. A., Seidel, V., Gressier, B., Brunet, C., Tillequin, F., Bailleul, F., ... & Cazin, J. C. (2000). Neurosedative and antioxidant activities of phenylpropanoids from Ballota nigra.

Cryptolepis (Cryptolepis sanguinolenta)

What is Cryptolepis?

Cryptolepis is a potent antibmicrobial herb originating from Africa and Southeast Asia. It’s become one of the go-to herbal species for treating resistant bacteria and malaria.

The active constituents of the plant are a group of alkaloids, each of which have been proven effective against a wide variety of bacterial, mycobacterial, fungal, and parasitic organisms (specific strains listed below).

The roots also contain a rich yellow pigment that makes the herb useful for dying fabrics and leather a deep yellow color.

What is Cryptolepis Used For?

Cryptolepis is almost exclusively used as an antimicrobial against parasitic, bacterial, amoebic, and fungal infections. This herb is very useful for infections of all kinds. It’s a popular herb for digestive disorders and infection, topically for skin infections, or orally for urinary tract infections.

Outside of medicine cryptolepis is used as a source of yellow dye — lending to one of its common names, yellow dye root.

Brewing a Decoction of Cryptolepis

Traditional Uses of Cryptolepis

+ Africa

Cryptolepis originates from Africa, where it was primarily used to treat malaria, amoebic dysentery, and both urinary and respiratory infection.

The herb’s success with malaria patients is what made the plant so popular today, and there is now large plots of land dedicated to its cultivation to meet the demand for the herb within Africa, as well as elsewhere in the world.

+ Asia & Indonesia

A closely related species — Cryptolepis buchanii — grows throughout Indonesia, Thailand, China, India, and Nepal.

This species was used in Thailand for treating systemic inflammation, arthritis, and muscle pain.

In India, this species was used to treat diarrhea, bacterial infection, ulcers, and for treating rickets in children.

Herb Details: Cryptolepis

Herbal Actions:

• Antiamoebic
• Antibacterial
• Anticancer
• Antifungal
• Anti-inflammatory
• Antiparasitic
• Antipyretic
• Antiviral (Mild)

Weekly Dose

• (1:2 Liquid Extract)
  30 100 mL
• View Dosage Chart

Part Used

Roots

Family Name

Apocynaceae

Distribution

Africa & Southeast Asia

Constituents of Interest

• Cryptolpine
• Norcyptolepine
• Cryptospirolepine
• Isocryptolepine

Common Names

• Cryptolepis
• Yellow Dye Root
• Delboi
• Gangamau
• Ghanian Quinine
• Kadze
• Koli Mekari
• Kpokpo-Yangolei
• Nibima
• Nombon
• Nurubima
• Ouidoukoi
• Paran Pupa

CYP450

• Unknown

Pregnancy

• Avoid cryptolepis if pregnant or breastfeeding

Duration of Use

• High-dose use of cryptolepis (4-6mL per day) should be limited to 60 days. Low-doses (1-2 mL per day) is considered safe for long-term use.

Botanical Information

Cryptolepis is a member of the Apocynaceae (dogbane) family — which contains roughly 348 genera of trees, shrubs, vines, and herb succulents. members of this family can be found throughout the tropics.

Another notable species in this family is Vinca major (periwinkle)

Most of the species in this family grow in dense tropical rainforests, but a select few prefer harsh, dry environments — including cryptolepis, which prefers dry savanah forests. You’re more likely to find the herb growing near a source of water, however.

You can find cryptolepis wild in dry grassy or forested regions from Senegal east to Nigeria. The plant can also be found sporatically in Camaroon and the Congo.

Some related species grow in Australia as well.

Within the cryptolepis genus there are roughly 42 species — with the primary studied species being Cryptolepis sanguinolenta.

Cultivation, Harvesting & Preparation

Both the roots and stems of the plant have been used as medicine, but the roots contain nearly twice as much of the active alkaloids than the stem — so most people tend to just use the roots instead.

Pharmacology & Medical Research

+ Antibacterial

Cryptolepis is well-known for its antibacterial activity — and is considered by many herbalists to be one of the most reliable systemic antimicrobial herbs available.

Cryptolepis has been tested agains many different strains of bacteria, amoeba, fungi, parasites, and virus.

The most active inhibitory effects of the herb are towards bacteria and parasites, with mild anti-fungal and antiviral activity.

These alkaloids work by inhibiting growth, breaking down cell membranes (lysis), causing morphological changes to the cell, and direct bactericidal activities [1, 2, 3].

One study in particular tested the effects of various cryptolepis extracts (water, ethanol, petroleum ether, chloroform, and ethyl acetate extracts) agains antibiotic-resistant bacteria [1]. The herb was effective agains 75% of the strains tested.

The study found cryptolepis extracts to be effective against the following bacteria:

• Staphylococcus saprophyticus

• Staphylococcus aureus

• Salmonella typhi

• Proteus mirabilis

• Excherichia coli

• Proteus mirabilis

• Pseudomonas aeruginosa

• Klebsiella pneumoniae

Cryptolepis has also been shown to inhibit other organisms, including:

• Neisseria gonorrhoeae [4]

• Shigella dysenteriae [2]

• Salmonella typhimurium [2]

• Vibrio cholerae [2]

• Enterococcus faecalis [2]

• Campylobacter jejuni (65 strains) [5]

• Campylobacter coli (41 strains) [5]

• Bacillus cerues [7]

• Streptococcus pyogenes [7]

• Enterobacter cloacae [7]

• Klebsiella pneumonia [7]

• Proteus vulgaris [7]

• Mycobacterium fortuitum [6]

• Mycobacterium phlei [6]

• Mycobacteriumaurum [6]

• Mycobacterium smegmatis [6]

• Mycobacterium bovis [6]

• Mycobacterium abcessus [6]

The herbs effectiveness agains Escherichia coli, Proteus miribalis, and Staphylococcus saprophyticus provide a mechanism of action for the herbs traditional uses for urinary tract infection.

it should be noted that in most of the studies cited above, the ethanolic extract was by far the most effective. Water extracts were the least effective overall unless decocted for several hours.

+ Antifungal

Many of the same alkaloids active agains bacterial strains are also effective agains fungal infection.

Cryptolepine and neocryptolepine have both been shown to have antifungal activity against the following species:

• Candida albicans [7]

• Aspergillus niger [4]

• Microsporum canis [7]

• Epidermophyton floccosum [7]

• Trichopyton rubrum [7]

• Trichopyton mentagrophytes [7]

• Saccharomyces cerevisiae [7]

+ Anti-Parasitic

This herb has a long history of use for malaria and other parasitic infections. As a result, there’s ben a lot of study to elucidate these effects further.

A preclinical trial using an aqueous extract of the root found the herb, as well as isolated fractions of cryptolepine and isocryptoleopine had direct antiplasmoidial activity [8]. I’s important to note that all strains of plasmodium falciparum used in this study were already resistant to chloroquine — suggesting alternate mechanisms for cryptolepine and isocryptolepines antimalarial effects.

These results have been replicated at least four more times using different alkaloid fractions of the plant, different administration methods (injection), and different strains of plasmodium — all showed varying levels of improvement from the application of cryptolepis [8, 9, 10].

One study noted a synergistic effect against plasmodium falciparum and Plasmodium berghei with artimisinins — which is a compound found in the Artemesia annua (Qing Hao). These same results were noted from a semi-synthetic analog of artemisinin called artesunate without producing any toxic side effects. [11].

Clinical Trials

In one trial [12], 44 patients with uncomplicated malaria were given cryptolepis root tea (2.5 gram equivalent) three times per day for five days. The effects were considered positive if the parasites were undetectable in the blood by day seven, and remained undetectable at a 28 day followup.

By the end of the study, 50% of patients were considered cleared of malaria after 2 days of treatment. Chills, vomiting, and nausea were cleared in all patients by day three. By the end of the trial, 93.5% of patients had undetectable levels of plasmodium in the blood, and no symptoms. These improvements are consistent with the pharmaceutical application chloroquine.

Phytochemistry

The primary group of medicinal compounds in cryptolepis are the alkaloids. The primary active alkaloids in the herb include:

• Cryptolepine (the primary bioactive compound)

• Norcryptolepine

• Cryptospirolepine

• Isocryptolepine

• Hydroxycryptolepine

• Cryptoheptine

• Biscryptolepine

• Neocryptolepine

• Cryptoquindoline

The primary active ingredient is cryptolepine — which is also the primary ingredient in another well-known systemic antimicrobial plant, Sida (Sida acuta).

Cryptolepine is an indoloquinoline alkaloid with significant antimicrobial activity. This compound has been shown to have direct antimalarial, antibacterial, anticancer, antipyretic, and anti-inflammatory activities [2, 13, 14, 15].

A separate alkaloid, cryptohepine, has also been shown to posess significant antibacterial activity against both gram-negative and gram-positive bacteria [5, 20]. Other alkaloids including neocryptolepine and biscryptolepine have also shown activity agains gram-positive bacteria, but aren’t as well studied as cryptohepine or cryptolepine. Neocryptine is reported to provide more bacteriostatic activity than bacteriocidal [7].

Cautions & Safety Information:

Cryptolepis has been used for thousands of years without any evidence of toxic side effects. One clinical trial gave patients 80 mL of cryptolepis extract for six days (a very high dose), with no side effects reported [16].

in rats, the LD50 of cryptolepis was over 5000 mg/kg — an incredibly potent dose [17, 18].

Some mild side effects have been noted when using isolated cryptolepis alkaloids that aren’t noted in whole-plant extracts. Side effects from this may include a rise in ALP and uric acid [12].

One animal study found cryptolepis leaf extract resulted in a decreased sperm count in rats [19].

Avoid using cryptolepis in combination with antidiabetic medications and central nervous system depressants (such as phenobarbitone).

Author:

Justin Cooke, BHSc

The Sunlight Experiment

(Updated March 2020)

Recent Blog Posts:

Featured Herb Monographs

References:

[1] — Mills-Robertson, F. C., Tay, S. C., Duker-Eshun, G., Walana, W., & Badu, K. (2012). In vitro antimicrobial activity of ethanolic fractions of Cryptolepis sanguinolenta. Annals of clinical microbiology and antimicrobials, 11(1), 16.

[2] — Paulo, A., Duarte, A., & Gomes, E. T. (1994). In vitro antibacterial screening of Cryptolepis sanguinolenta alkaloids. Journal of ethnopharmacology, 44(2), 127-130.

[3] — Sawer, I. K., Berry, M. I., & Ford, J. L. (2005). The killing effect of cryptolepine on Staphylococcus aureus. Letters in applied microbiology, 40(1), 24-29.

[4] — Boakye-Yiadom, K. (1979). Antimicrobial properties of some West African medicinal plants II. Antimicrobial activity of aqueous extracts of Cryptolepis sanguinolenta (Lindl.) Schlechter. Quarterly Journal of Crude Drug Research, 17(2), 78-80.

[5] — Paulo, A., Pimentel, M., Viegas, S., Pires, I., Duarte, A., Cabrita, J., & Gomes, E. T. (1994). Cryptolepis sanguinolenta activity against diarrhoeal bacteria. Journal of ethnopharmacology, 44(2), 73-77.

[6] — Gibbons, S., Fallah, F., & Wright, C. W. (2003). Cryptolepine hydrochloride: a potent antimycobacterial alkaloid derived from Cryptolepis sanguinolenta. Phytotherapy Research, 17(4), 434-436.

[7] — Cimanga, K., De Bruyne, T., Pieters, L., Totte, J., Tona, L., Kambu, K., ... & Vlietinck, A. J. (1998). Antibacterial and antifungal activities of neocryptolepine, biscryptolepine and cryptoquindoline, alkaloids isolated from Cryptolepis sanguinolenta. Phytomedicine, 5(3), 209-214.

[8] — Grellier, P., Ramiaramanana, L., Millerioux, V., Deharo, E., Schrével, J., Frappier, F., ... & Pousset, J. L. (1996). Antimalarial activity of cryptolepine and isocryptolepine, alkaloids isolated from Cryptolepis sanguinolenta. Phytotherapy Research, 10(4), 317-321.

[9] — Cimanga, K., De Bruyne, T., Pieters, L., Vlietinck, A. J., & Turger, C. A. (1997). In vitro and in vivo antiplasmodial activity of cryptolepine and related alkaloids from Cryptolepis sanguinolenta. Journal of natural products, 60(7), 688-691.

[10] — Whittell, L. R., Batty, K. T., Wong, R. P., Bolitho, E. M., Fox, S. A., Davis, T. M., & Murray, P. E. (2011). Synthesis and antimalarial evaluation of novel isocryptolepine derivatives. Bioorganic & medicinal chemistry, 19(24), 7519-7525.

[11] — Forkuo, A. D., Ansah, C., Boadu, K. M., Boampong, J. N., Ameyaw, E. O., Gyan, B. A., ... & Ofori, M. F. (2016). Synergistic anti-malarial action of cryptolepine and artemisinins. Malaria journal, 15(1), 89.

[12] — Bugyei, K. A., Boye, G. L., & Addy, M. E. (2010). Clinical efficacy of a tea-bag formulation of Cryptolepis sanguinolenta root in the treatment of acute uncomplicated falciparum malaria. Ghana medical journal, 44(1).

[13] — Ntie-Kang, F., Lifongo, L. L., Simoben, C. V., Babiaka, S. B., Sippl, W., & Mbaze, L. M. A. (2014). The uniqueness and therapeutic value of natural products from West African medicinal plants. Part I: uniqueness and chemotaxonomy. RSC Advances, 4(54), 28728-28755.

[14] — Bierer, D. E., Fort, D. M., Mendez, C. D., Luo, J., Imbach, P. A., Dubenko, L. G., ... & Zhang, P. (1998). Ethnobotanical-directed discovery of the antihyperglycemic properties of cryptolepine: its isolation from Cryptolepis sanguinolenta, synthesis, and in vitro and in vivo activities. Journal of medicinal chemistry, 41(6), 894-901.

[15] — Paulo, A., Gomes, E. T., & Houghton, P. J. (1995). New alkaloids from Cryptolepis sanguinolenta. Journal of Natural Products, 58(10), 1485-1491.

[16] — Luo, J., Fort, D. M., Carlson, T. J., Noamesi, B. K., nii‐Amon‐Kotei, D., King, S. R., ... & Waldeck, N. (1998). Cryptolepis sanguinolenta: an ethnobotanical approach to drug discovery and the isolation of a potentially useful new antihyperglycaemic agent. Diabetic medicine, 15(5), 367-374.

[17] — Ansha, C., & Mensah, K. B. (2013). A review of the anticancer potential of the antimalarial herbal Cryptolepis sanguinolenta and its major alkaloid cryptolepine. Ghana medical journal, 47(3), 137-147.

[18] — Ansah, C., Mfoafo, E. A., Woode, E., Opoku-Okrah, C., Owiredu, W. K. B. A., & Duwiejua, M. (2008). Toxicological evaluation of the anti-malarial herb Cryptolepis sanguinolenta in rodents. J Pharmacol Toxicol, 3, 335-43.

[19] — Ajayi, A. F., & Akhigbe, R. E. (2012). Antifertility activity of Cryptolepis sanguinolenta leaf ethanolic extract in male rats. Journal of human Reproductive sciences, 5(1), 43.

[20] — Paulo, A., Gomes, E. T., Steele, J., Warhurst, D. C., & Houghton, P. J. (2000). Antiplasmodial activity of Cryptolepis sanguinolenta alkaloids from leaves and roots. Planta medica, 66(01), 30-34.

Horopito (Pseudowintera colorata)

What is Horopito?

Horopito is commonly known as New Zealand pepperwood for its mild spicy flavor and exclusivity to the cooler islands of the south pacific ocean — including New Zealand.

This herb has a lot of traditional uses as medicine but went largely noticed by the international herbal medicine community. Recently there’s been a surge in interest in the plant after a series of studies were done to assess the medical value of traditional New Zealand herbs.

Horopito is used for skin and digestive conditions largely due to the plant’s potent antifungal actions. This plant has been shown to kill candida, as well as a number of parasitic worms.

The mild spicy nature of the plant also brings some circulatory stimulant and analgesic activity.

This plant has a lot of practical applications, especially for infectious fungal or parasitic conditions. It’s likely this plant will become much more commonplace in western herbal medicine within the next 5 to 10 years.

What is Horopito Used For?

The primary uses of horopito in modern herbal medicine is for fungal, bacterial, and parasitic infections.

A liquid extract of the herb is the most common form used today, but you can also find capsules and topical applications of the herb. For skin infections, such as ringworm or eczema, a poultice of the leaves can be applied directly, but a liniment is more common as the plant can be difficult to grow outside New Zealand.

Traditional Uses of Horopito

The Maori of New Zealand have been using horopito for a long time and have a long list of applications for its leaves.

The Maori use horopito in the following ways:

• As a flavoring agent (spicy flavor profile)

• For sexually transmitted infection

• Ringworm

• Chaffed or damaged skin

When the early Europeans colonized New Zealand many of them began using the herb as a source of vitamin C to prevent or treat scurvy.

Herb Details: Horopito

Herbal Actions:

• Analgesic
• Anti-Allergy
• Antibacterial
• Antifungal
• Anti-Inflammatory
• Astringent
• Circulatory Stimulant
• Gastroprotective
• Insecticidal
• Nutritive
• Rubefacient

Weekly Dose

• 10 – 30 mL (1:2 Extract)
• View Dosage Chart

Part Used

Leaves & Inner Bark

Family Name

Winteraceae

Distribution

Cooler Tropical islands Around new Zealand

Constituents of Interest

• Anthocyanins
• Dialdehyde polygodial
• Sesquiterpenes
• Eugenol

Common Names

• Horopito
• New Zeland Pepper Tree
• Maori Painkiller
• Ramarama

CYP450

• Unknown

Quality

• Warm

Pregnancy

• Safety during pregnancy not well established, avoid use while pregnant or breastfeeding.

Duration of Use

• Long-term use is acceptable and common

Botanical Information

Horopito is a member of the Winteraceae family of plants — which consists of about 90 species of trees and shrubs nearly exclusive to the Southern hemisphere.

The leaves of horopito have a characteristic red color as a result of the sesquiterpene content of the leaves — which are also one of the main medicinal compounds in the plant.

Cautions & Safety Information:

There have been very few reports of side effects from using horopito — however, some reports of allergic reactions have been reported.

Horopito should be avoided by epileptics due to a possible increase in extracellular glutamate found in some animal studies.

Avoid larger doses of the herb with acute gastritis or peptic ulcers.

Author:

Justin Cooke, BHSc

The Sunlight Experiment

(Updated March 2020)

Recent Blog Posts:

References:

1. insert

Manuka (Leptospermum scoparium)

What is Manuka?

In New Zealand, where manuka trees grow, the Maori consider male tea tree plants "Kanuka" and the female plants "Manuka". The plant is regarded very highly in this culture as a medicinal species.

The most well-known form of manuka is in manuka honey. This is a honey made by bees feasting primarily on manuka bushes. The honey has an impressive antibacterial profile when made from these plants. This is also reflected in the herb itself, which has been shown to have potent antibacterial, anti-fungal, and antiviral activity.

Most of the medicinal benefits of the plant come from its essential oil content, which can vary a lot depending on the region the plant was grown in.

What is Manuka Used For?

Internally, manuka is used to treat gastrointestinal conditions like diarrhea, colic, inflammatory bowel syndrome, and dysentery. It's also used for urinary tract infection, anxiety, and cold/flu infections.

Manuka is used topically for its antibacterial, and vulnerary actions. It's used to treat slow healing skin and bone injuries, bacterial infections, candida, and eczema. It can be gargled for gingivitis, or for general oral hygiene.

Manuka honey is another common form of the plant. It's become so popular worldwide, it's been standardised by the phenol content. This is expressed as a unique manuka factor (UMF) value set by the Active Manuka Honey Association (AMHA). Anything over UMF 5 is considered strong enough to kill MRSA.

Herb Details: Manuka

Herbal Actions:

• Anti-inflammatory
• Antibacterial
• Antifungal
• Antispasmodic
• Anxiolytic
• Diaphoretic
• Diuretic
• Febrifuge
• Sedative
• Astringent

Weekly Dose

• (1:2 Liquid Extract)
  20-65 mL
• View Dosage Chart

Part Used

• Leaves, Flowers, Bark

Family Name

• Myrtaceae

Distribution

• New Zealand

Constituents of Interest

• Leptospermone
• Sesquiterpenes
• Tannins
• Citronellal

Common Names

• Manuka
• Tea Tree
• New Zealand Tea Tree

Quality

• Neutral-Warm

Pregnancy

• Unknown

Taste

• Spicy

Duration of Use

• Long term use is acceptable, but should be taken away from food.

Botanical Information

Manuka is a member of the Myrtaceae family of plants. This family contains as many as 133 different genera, and around 3800 different species, many of which are medicinally relevant.

Clinical Applications Of Manuka:

Manuka is useful both internally and topically. It's been shown to be an effective antibacterial agent for various forms of bacteria (including Staphylococcus). It's also an effective anti-fungal and antiviral (including HSV). The antibacterial effects were the most notable, with only some chemotypes of Manuka showing potent anti-fungal benefits.

Manuka can be used for nearly any form of bacterial infections both topically and internally, as well as wounds, ulcers, and gastrointestinal inflammation or infection. It's also useful for skin inflammation like eczema or psoriasis. The muscle relaxant effects make it useful for injuries, muscle tension, colic, and insomnia.

Cautions:

Manuka is widely considered safe and there are no common side effects of the herb.

+ Contraindications

Avoid long-term use alongside food. Tannins may impede mineral absorption.

Author:

Justin Cooke, BHSc

The Sunlight Experiment

(Updated November 2018)

Recent Blog Posts:

Magnolia (Magnolia officinalis)

What is Magnolia?

Magnolia is one of the oldest flowering plants in existence, dating back as far as 95 million years ago. The first angiosperm is thought to have originated 130 million years ago. this is long before bees first appeared. To no surprise then, magnolia have evolved to be pollinated by beetles instead, which have been around for much longer.

Magnolia is a common herb in traditional Chinese medicine for treating Qi stagnation and removing obstructions.

It remains popular for reducing sinus infection and congestion, sinus headaches, asthma, coughs, and catarrh as well as anxiety and heightened cortisol levels.

+ Indications

• Abdominal pain
• Alzheimer's Disease
• Amoebic dysentery
• Anxiety
• Asthma
• Bloating
• Catarrh
• Coughs
• Diarrhea
• Gas
• Gastroenteritis
• Menstrual cramps
• Nausea/vomiting
• Poor appetite
• Poor digestion
• Rheumatoid arthritis
• Rhinitis
• Sinus infection
• Stress
• Typhoid
• Ulcers
  

+ Contraindications

Avoid use during convalescence.

How Is Magnolia Used?

Magnolia is used for its anxiolytic and digestive effects.It's often combined with Phellodendron for treating both acute and chronic stress.

Magnolia is also commonly used for upper respiratory tract infection, sinus congestion, and catarrh.

Herb Details: Magnolia

Herbal Actions:

• Antioxidant
• Antiallergic
• Antiasthmatic
• Anxiolytic
• Antibacterial
• Antifungal
• Antispasmodic
• Aphrodisiac
• Emmenagogue
• Expectorant

Weekly Dose

• (1:2 Liquid Extract)
  15-100 mL
• View Dosage Chart

Part Used

• Bark

Family Name

• Magnoliaceae

Distribution

• Eastern Asia, North America, Central America

Constituents of Interest

• Honokiol
• Magnolol

Common Names

• Magnolia
• Ch'Uan Pu (China)
• Chinese Magnolia
• Choon Pok
• Hou Pu

Quality

• Warm

Pregnancy

• Unknown

Taste

• Bitter

Duration of Use

• Long term use acceptable, but should be monitored by a professional.

Botanical Information

Magnolia officinalis is a medium sized tree, ranging from 5 to 15 m in height. It's deciduous, with purple brown bark.

Magnolia is a member of the Magnoliaceae family of plants. There are 2 subfamilies in this family, including Magnollioideae and Liriodendroideae. The latter of which only includes Liriodendron (Tulip trees). In The Magnoliaceae family there are approximately 219 species, distributed into 17 genera. The vast majority are included in the Magnolia genus, which has about 210 different species.

One interesting note is that it appears magnolia appeared before bees did. The flowers are instead evolved to be pollinated by beetles, due to the extremely tough carpels on the flower. There have also been fossils discovered with plants contained in the Magnoliaceae family as far back as 95 million years ago, making Magnolia one of the oldest remaining angiosperms.

Clinical Applications Of Magnolia:

Magnolia increases the activity of GABA receptors, as well as the muscarinic receptors. This is why Magnolia is useful for both its sedative effect, as well as some mild stimulating effects. While most anxiolytic herbs have a particular effect on the parasympathetic nervous system (through GABAergic effects), Magnolia also increases the activity of the sympathetic nervous system through the muscarinic acetylcholine receptors in a similar way to GABA.

Magnolia is especially useful for eliminating nasal congestion, sinus infections, coughs, and catarrh. It's used to improve indigestion and dysentery, though it is not commonly used for bacterial or fungal infections alone.

Magnolia is also used for reducing symptoms of stress and anxiety. It can reduce cortisol levels in stressed individuals, especially in combination with Phellodendron. Its primary actions for this involves GABAergic activities, and have been shown to lower salivary cortisol levels in stressed individuals.

Magnolia should be avoided in those who are chronically fatigued, or who are suffering from convalescence. Traditional Chinese medicine suggests that magnolia should be avoided with any condition involving yin deficiency.

Author:

Justin Cooke, BHSc

The Sunlight Experiment

(Updated November 2018)

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Lavender (Lavandula angustifolia)

What is Lavender?

Lavender is one of the most famous herbs known to man. It's cultivated on a massive scale throughout Europe and North America and is a popular flavoring and aromatic agent for household products.

Medicinally lavender is best known for its ability to promote sleep. It's often sold as aromatherapy, in salves and creams, and incense for this purpose. Lavender is also great for internal use, where it interacts with the GABA system to produce relaxation and sleep.

Lavender essential oil can be used as a topical agent for insect bites, rashes, and infection.

What is Lavender Used For?

Lavender is mainly used in topical applications for rashes, skin irritations, mild infections, sunburn, and insect bites. Internally it's mainly used for anxiety-related conditions, GIT inflammation and discomfort, and insomnia.

Herb Details: Lavender

Herbal Actions:

• Analgesic (mild)
• Antibacterial
• Anti-cancer
• Anticonvulsant
• Antidepressant
• Antifungal
• Antioxidant
• Anxiolytic
• Antiparasitic
• Carminative
• Nervine Relaxant
• Neuroprotective
• Antispasmodic

Weekly Dose

• (1:2 Liquid Extract)
  15–30 mL
• View Dosage Chart

Part Used

• Leaves and flowers

Family Name

• Lamiaceae

Distribution

• Mediterranean and Southern Europe
  Northern and Eastern Africa

Constituents of Interest

• Monoterpene Alcohols
• Athocyanins

Common Names

• Lavender
• Laventelit (Finland)
• English Lavender

Pregnancy

No adverse reactions expected.

Duration of Use

• This herb is generally regarded as safe for long term use.

Botanical Information

Lavender is a member of the mint family (Lamiaceae). In the genus Lavandula, there are approximately 47 species — most of which are perennials, or small shrubs.

There are a number of lavenders used medicinally

• Lavandula angustifolia (English Lavender)

• Lavandula stoechas (French Lavender)

• Lavendula dentata (Spanish Lavender)

This list is disputed by many taxonomists, suggesting that French lavender may be Lavandula stoechas or Lavandula dentata, and that Spanish lavender could be either Lavandula dentata, or Lavandula lanata, or Lavandula dentata.

Clinical Applications Of Lavender:

Lavender is useful topically for female conditions including dysmenorrhoea and PMS due to its antispasmodic and analgesic effects. It's also useful topically for its anti-fungal and antibacterial effects. Internally lavender can be used for gastrointestinal complaints, including bloating, flatulence, and colic.

Lavender is a reliable nervine for its GABAergic activity. Additionally it has been shown to reverse the stimulating effects induced by caffeine, and inhibits acetylcholine release.

Cautions:

Lavender has been proven to be a very safe herb with a low incidence of adverse effects.

Avoid use with pharmaceutical sedatives due to the possibility of agonistic synergy.

Author:

Justin Cooke, BHSc

The Sunlight Experiment

(Updated May 2019)

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