The Ordinary Hair Serum: What The Multi-Peptide Formula Does And What Pairs
The Ordinary hair serum is the Multi-Peptide Serum for Hair Density, a leave-in scalp serum built on named peptides and caffeine. Here is how I would use it, what the brand does and does not claim, and the scalp serums, shampoos and massagers that fit around it, down to the Denman scalp massager.