Renpure Biotin & Collagen Thickening Leave-In Conditioner Treatment is infused with Vitamin B7 (Biotin) and protein (Collagen), this leave-in conditioner treatment helps give the appearance of fuller, thicker hair while nourishing fine hair with lightweight conditioning for beautifully smooth and shiny results. | Our Biotin & Collagen Leave-In Treatment is enriched with Vitamin B7 (Biotin), which reinforces the structural integrity of the hair shaft for a fuller look, and Collagen, which promotes strength and moisture retention, enhancing volume and density for fine, thin or limp hair. | Spray product evenly throughout damp hair. Comb through to detangle, do not rinse out, and style as usual. Use daily for best results and pair with Renpure Biotin & Collagen Shampoo and Conditioner to achieve hair that looks and feels fuller and denser. | Our Biotin & Collagen Leave-In Conditioner Treatment is naturally inspired, vegan and cruelty free and and free from Mineral Oil, Petrolatum, Sulfates, Parabens, Silcones or Gluten. | At Renpure, we believe that everyone deserves beautiful hair, without compromise. Our lids and bottle are both 100% recyclable, making sustainable choices easier. After rinsing, drop the whole package into the recycling bin.