Cosmeceutical Applications of Phlorotannins from Brown Seaweeds

Topical application of Eriodictyon angustifolium extract can prevent and reverse age-related beard graying and darken gray hair by increasing melanin production. Sterubin, a component of the extract, also promotes hair pigmentation and protects cells from DNA damage.

Astaxanthin (ASX) is highlighted as a promising supplement for treating hair loss due to its antioxidant properties. It may help with inflammation and oxidative stress, which are linked to hair loss and aging.

A peptide from Japanese water chestnut fruit may help with hair loss by suppressing DHT's effect on hair follicle cell death, potentially serving as a finasteride alternative. The treatment's effectiveness and safety in humans remain uncertain.

Finasteride may help users look younger by suppressing DHT, affecting skin and hair. Users also emphasize skincare, sunscreen, and lifestyle for maintaining a youthful appearance.

Theaflavin, a black tea extract, may inhibit DHT and androgen receptor activity, but its effectiveness for hair loss is debated. Users report no significant improvement with theaflavin, while some find beta sitosterol helpful.

Catalase is discussed as a potential treatment for delaying or reversing grey hair, but no reliable medicine currently exists. Other mentioned treatments include Imatinib, senolytics like Quercetin and Fisetin, He Shou Wu, Argan oil, and reishi mushroom extract, though their effectiveness varies.