3 Review(s)

Transform fine, flat strands into volumized, fuller hair with Cosmo Biotin Boost Thickening Shampoo. Infused with biotin and collagen to help promote stronger, thicker-looking hair. Biotin helps to strengthen the hair shaft, thickens, and texturizes while adding volume and dimension for a fuller look. Bring a full, voluminous look to your hair with Cosmo Biotin Boost thickening shampoo. The biotin inside this beauty care essential helps give hair a thick appearance, while the collagen works to fortify strands for added strength. A simple format makes it easy to lather up and gives your hair a soft, gentle clean. This Cosmo Biotin Boost thickening shampoo is free from sulfates, parabens, gluten, and drying agents, so you can feel good about using it every day.