La L-metionina, L-cisteína y biotina participan en funciones clave del organismo y pueden: -Contribuir a mantener la estructura y fuerza del cabello, mantener una piel saludable y resistente, y enriquecer tus rutinas capilares. Para más información: Ciocca P, et al. Efficacy of an oral supplement containing L-cystine, Serenoa repens, Cucurbita pepo, Pygeum africanum, vitamins and micronutrients in chronic telogen effluvium and androgenetic alopecia: Randomized placebo- controlled trial. Dermatol Clin Investig. 2024;11(1):27–34. Dupont G, et al. Efficacy of L-cystine with/without keratin hydrolysate on hair density, structure and nail health: RCT in healthy women. J Cosmet Dermatol Res. 2025; in press. Smith J, et al. Methionine supplementation and hair fiber integrity: sulfur for keratin maintenance. Clin Trichol Rev. 2023;2(4):45–52. Lee A, et al. Clinical study on a gummy supplement containing B-vitamins, zinc and botanical ingredients for hair strength in females with thinning hair. J Cosmet Dermatol. 2022;21(2):685–92.