January 2026 in “Journal of Hard Tissue Biology” Red LED light boosts cell activity and growth, aiding wound healing and blood vessel repair.
2 citations
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January 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.
5 citations
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June 2016 in “JAMA Dermatology” People with hair loss should use strong sun protection to prevent scalp skin cancer.
April 2016 in “JAMA Dermatology” Baseball caps don't fully protect bald spots on the back of the head from sun damage; wear wide-brimmed hats or use sunscreen.
6 citations
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December 2013 in “Journal of Cosmetic Dermatology” Pigmented concealing powders can improve the look of hair density for people with hair loss but need daily application and may not work well in wet conditions.