Promois EU-118 Collagen Serum (90ml) is enriched with collagen peptides and Argan oil to repair damaged and frizzy hair. The serum provides a protective layer, replenishes lost moisture, and helps mend split ends, making hair easier to comb. It nourishes and strengthens the hair, leaving it softer and more manageable. To use, apply five drops to your palms and massage into damp or dry hair after washing. For best results, store the serum in a dry place away from heat.