Free of: sulfates, parabens, phthalates, gluten, alcohol and artificial colors. With ProDefense Complex, a protein-based complex that penetrates hair to build strength, reinforce & protect. Protect fragile hair from damage and breakage with Hask Bamboo Oil Strengthening Shampoo. Known to provide a strong foundation for hair, silicone rich bamboo helps reinforce hair strands, improve flexibility and prevent split ends. With ProDefense Complex, biotin and collagen, this shampoo fortifies as it cleanses, providing stronger and healthier looking hair.