Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Black garlic, a form of aged garlic, has been used in various cultures for its purported health benefits, including as a remedy for hair loss or thinning. The use of black garlic for hair concerns is primarily rooted in traditional and folkloric medicine, especially in East Asian countries like Korea and Japan. It is believed that the antioxidant properties of black garlic—enhanced through the aging process—may help improve scalp health and stimulate hair growth. Some traditional remedies involve the topical application of black garlic extracts or oils to the scalp, with the idea that improved circulation and reduced oxidative stress can benefit hair follicles.

Despite these traditional applications, scientific evidence supporting the efficacy of black garlic specifically for hair loss or thinning is limited. Most available studies on black garlic focus on its antioxidant, anti-inflammatory, and antimicrobial properties. There are a few small-scale laboratory or animal studies suggesting that garlic extracts (not necessarily black garlic) might have positive effects on hair growth, likely due to their sulfur content and ability to inhibit certain pathogens that can affect the scalp. However, robust clinical trials involving black garlic and its direct impact on human hair loss are lacking.

In summary, the use of black garlic for supporting hair health is primarily based on traditional practices, with modest supportive evidence from related research on garlic and general scalp health, but not from direct, high-quality clinical studies.

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