For thick and stiff dry hair. Formulated with collagen amino acid (moisturizing ingredient) to create a smooth, easy-to-set hair with moisture and natural shine.Amino acid compounding ingredients for all products in the series.Why do you need hair amino acid supplementation? About 85% of the hair components are made of protein, and they are lost little by little in the daily routines mentioned at the beginning. Lux focuses on that fact. The “Lux Hair Supplement Series” was developed based on the importance of supplying amino acids, which are protein constituents to the hair.