Concerning this item Thicken and restore | Designed to help strengthen and repair hair. This leave-in spray nourishes and hydrates fine, thin hair while gently eliminating impurities to give it thickness and volume. Fortify | Use the Biotin Boost Thickening Spray, which is infused with coffee, collagen, and biotin, to turn thin, flat hair into gorgeously thicker and fuller hair with a revitalizing herbaceous aroma. Go Big or Go Home | Use tri-level thickening to add volume, strength, and fortification to your hair Free of artificial coloring, drying alcohol, phthalates, parabens, sulfates, and gluten The Clean Beauty Standard by HASK Our goal is to produce high-quality hair care products that are formulated without harmful ingredients, carefully sourced, and tested for effectiveness. Biotin: Condensing Coffee, collagen, and biotin together will give the appearance of thicker skin.