Ideal for weak, brittle strands, the Longer Healthier Hair Shampoo by Revolution is a deeply hydrating formula that helps to minimise the risk of breakage. The shampoo sets to work to effectively cleanse the hair of impurities and product build-up, seeking to leave the strands feeling ultra-fresh. n A blend of vegetable protein and biotin aims to smooth and promote thicker-looking hair. Amino acids plump the hair with intense moisture, while encouraging a glossy shine. Pair with the Revolution Healthy Hair Vegan Gummy Vitamins for optimal results. n Vegan.