There are some pros and cons to consider when deciding whether CBD for hair growth is the best treatment for you.
Strong Points:
Clinical studies, although limited, have shown that CBD treatments can be effective. CBD is generally safe to use. It offers an organic alternative to hair growth treatments.
Cons:
Because available research is limited, additional studies are needed to fully support the hair growth mechanism of CBD. Research has shown that both very high and very low concentrations of CBD can lead to hair loss. The quality of CBD products, especially in terms of purity, can vary significantly.
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Benefits of using CBD for hair growth
It’s not yet clear how CBD helps with hair growth, but research suggests that it may interact with certain endocannabinoid receptors (the endocannabinoid system operates receptors and enzymes throughout the body) to reduce inflammation and promote a healthy environment for hair growth.
The hair follicle is the part of the hair that’s under the skin, while the hair shaft is the visible part on the outside of the skin. “In the hair follicle, the thought is that CBD blocks (the CB1 receptors), causing the hair shaft to elongate (or grow),” says Brian Toy, MD, a dermatologist at Providence Mission Hospital in Mission Viejo, California.
Additionally, CBD may prolong the anagen phase of the hair growth cycle by desensitizing the TRPV1 receptors that detect harmful heat. This desensitization slows hair follicle contraction and promotes hair growth during the anagen phase of the hair growth cycle.
Additionally, Craig Henderson, founder and CEO of CBD company Extract Labs, says, “CBD has been proven to improve blood circulation, helping to deliver nutrients to hair follicles more efficiently.”
Side Effects of Using CBD for Hair Growth
According to several studies and experts, applying cannabis extracts topically can have the following side effects:
Allergic reactions to other ingredients in CBD products, such as itchy skin, burning or stinging sensations, erythema (a skin condition that causes a rash), hair loss at high doses, and certain oils
Dr. Toy and Dr. Henderson suggest testing CBD products on a small amount on your skin first to see if there are any signs of irritation.
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How to Use CBD for Hair Growth
CBD products for hair growth sold as shampoos, creams, or oils should be used topically by applying it directly to the skin, not orally, so the CBD can come into contact with the skin, hair, and hair follicles.
“CBD oils and tinctures are perfect for applying directly to the scalp for targeted effects, and incorporating CBD-infused shampoos and conditioners into your regular haircare routine can provide consistent nourishment and scalp care,” says Henderson.
“In my practice, patients don’t like scalp creams or oils because they make their hair oily,” Dr. Toy points out. “Patients do like medicated shampoos, but their effectiveness is limited because they wash off quickly. The short contact time reduces the shampoo’s ability to have a lasting effect on the hair follicles.”
Dr Toy adds that CBD products are not standardized for treating alopecia, so there will likely be a wide variety of products on the market, both in terms of formulations and dosages. “Alternative treatments such as CBD (for alopecia) are experimental and should only be considered by those who have tried and failed with conventional treatments,” he says.
Dr. Toy also recommends testing any new products on a small area first to check for irritation such as allergic contact dermatitis (an inflammatory response to a specific allergen). “One ingredient to watch out for is propylene glycol. Propylene glycol is commonly used as a solvent in many topical medications, but in high concentrations it can irritate the skin and cause contact dermatitis,” he says.
