Amla (Phyllanthus emblica L.) – tested for female hair loss (Akhbari M. et al., 2024, The effect of an oral product containing Amla fruit on female androgenetic alopecia, J Ethnopharmacol)
Zinc & copper – analysis of serum concentrations in hair loss (Kil MS et al., 2013, Analysis of Serum Zinc and Copper Concentrations in Hair Loss, Ann Dermatol)
Tripeptide-copper – in vitro effect on hair growth (Pyo HK et al., 2007, The effect of tripeptide-copper complex on human hair growth in vitro, Arch Pharm Res)
Methionine & keratin – study on demethylation and hair damage (Demethylation of methionine and keratin damage in human hair, 2018)