R12 tri peptide active hair serum for women: this power-effect serum is a maximum strength topical formula that nourishes the scalp and helps to strengthen and thicken hair. Increasing hair volume by working on the deep structure of the roots, the serum softens collagen and promotes hair follicle growth. Enriched with natural dht blockers and extracts, the serum rebalances sebaceous secretion, whilst the micro-elements and vital nutrients condition the hair shaft to deliver fuller hair with a healthy appearance.