Utena Proqualite Straightening Shampoo is what you need for dry, brittle, permed or colored strands. This shampoo perfectly cleanses the scalp and moisturizes hair. Hydrolyzed silk provides intensive moisturizing and long-term protection, and collagen strengthens curls, making them stronger and healthier. Amino acids nourish the hair and clean it of dirt and sebum. After using the shampoo, the strands are clean and shiny.