skinChemists Biotin Hair Growth & Thickening Conditioner is a rich, nourishing treatment formulated with Biotin and essential amino acids to enhance hair health. This conditioner is designed to strengthen hair, promote the appearance of thicker and fuller hair, and improve the overall scalp condition by supporting the reduction of the hair thinning appearance, improving hair elasticity to make it less prone to breakage, and enhancing the look of hair volume and shine. To use, apply the conditioner after shampooing to wet hair, focusing on mid-lengths to ends, leave on for 2-3 minutes, and then rinse thoroughly.