Scalp application of antioxidants improves scalp condition and reduces hair shedding in a 24-week randomized, double-blind, placebo-controlled clinical trial
This 2021 randomized, double-blind, placebo-controlled clinical trial evaluated the efficacy of a topical regimen containing antioxidants and barrier-enhancing agents (piroctone olamine, zinc pyrithione, zinc carbonate, niacinamide, panthenol, and caffeine) on scalp health and hair shedding. Conducted over 24 weeks with 352 participants aged 25–65 experiencing self-perceived hair thinning, the study