Renpure Biotin & Collagen Thickening Shampoo is infused with nutrients to help fine hair look and feel thicker and fuller. Our Biotin & Collagen Shampoo contains a blend of Vitamin B7 (Biotin) and protein (Collagen), created to give you the appearance of full, healthy-looking hair.At Renpure, we believe that everyone deserves beautiful hair, without compromise. Our naturally derived shampoos and conditioners bring your hair to life without the use of harmful ingredients, while caring for our planet. Like you, Renpure is beautiful inside and out. Our pump and bottle are both 100% recyclable and made from post consumer recycled plastic, making sustainable choices easier. After rinsing, drop the whole package into the recycling Bin.