Skin
Seven-Peptide Serums: Do More Actives Mean Better Evidence?
September 2026 launches are making multi-peptide serums look like a new form of skincare arithmetic: seven peptides must be better than three, and a longer ingredient story must mean a bigger biological result. That logic is neat marketing, but peptide science is not a headcount. The word peptide covers a broad family of molecules that may be designed as signals, carriers or modulators, and their behaviour depends on chemistry, concentration and