Hydrolyzed Vegetable Protein that absorbs into your hair and locks in moisture, adding Shine and Preventing Breakage. Nourishes Hair Follicles and Prevents Hairfall. Protein Shampoo helps your hair to get back all those proteins that have been lost due to the chemicals. Protein Shampoo brings back the healthy growth and glow to your hair, just like Vitamin Shampoos. Protein Shampoos not only contain proteins but also vitamins and amino acids that are required for the healthy hair.