The Ordinary Multi-Peptide Hair Serum for Thicker HairThe Ordinary Multi Peptide Hair Serum Redensyl, Procapil & Baicapil The Ordinary Multi Peptide Hair Serum from DECIEM is a science backed, lightweight daily serum formulated with a high potency multi technology complex targeting multiple pathways of hair loss and thinning. Combining Redensyl, Procapil, and Baicapil, it stimulates hair follicle activity, improves scalp circulation, and visibly increases hair density and thickness over consistent use.