Of the 30 different types of nettles, the stinging nettle is the most common and one that is often used in herbal treatments for gout, joint pain, muscle pain, hay fever and insect bites. It's also believed to promote hair growth.
Stinging Nettle
Botannicals.com says the stinging nettle is a perennial with dark green leaves and small purple flowers. It's found throughout the world. Its sting comes from the fine hairs on the leaves. When touched, they release enzymes that cause a burning, itchy rash on the skin.
The Function
According to Hair Loss Supplements, the relationship between stinging nettle and the hormone DHT, or dihydrotestosterone, is being researched. DHT is a metabolite that has been linked to hair loss in men and women. Stinging nettle may be able to stop testosterone from forming DHT by blocking two key enzymes. Although no direct studies have been conducted on nettle and hair growth, studies on nettle and enlarged prostate have shown nettle's ability to affect DHT production.
Stinging Nettle Topical Treatments
A number of different hair products contain extracts of stinging nettle, including shampoo and conditioner. Nettle extract also gives hair extra body and shine. According to Herbal 2000, topical ointments are also available. These can be applied directly to the scalp.
Stinging Nettle Supplement
According to Supplement News, the suggested dosage for stinging nettle capsules is 250mg, twice daily. As a tisane, 1 tsp. dried root should be boiled in 1 cup water for 10 minutes. It should be strained before drinking.
Warnings
Side effects from the use of nettle root include stomach cramps, skin rash, water retention and hives. You should not use a nettle supplement if pregnant or breastfeeding, or if taking non-steroidal anti-inflammatory drugs, beta blockers, channel blockers or blood thinners. Consult your physician before using nettle root.
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