It increases the thickness of each existing hair, providing denser hair, as if you had up to 11,000 more hairs. Composition Diaboost contains specific ingredients, such as niacinamide and panthenol, that help thicken and strengthen hair, improving its appearance and volume. Instructions for use Shake well before use. Apply Diaboost directly to a clean, dry scalp. Gently massage with your fingertips to distribute the product. No need to rinse. Use daily for best results. Ingredients Aqua/Water/Eau, Phenoxyethanol, Polysorbate 80, Polysorbate 60, Acetamide MEA, Triethanolamine, Hydroxyethylcellulose, Methylparaben, Panthenol, Sodium PCA, Propylene Glycol, Caffeine, PEG-23M, Parfum/Fragrance, Disodium EDTA, Ethylhexylglycerin, Sodium Benzoate, Mentha Piperita (Peppermint) Oil, Menthol, Polysorbate 20, Biotin, Citric Acid, Hexyl Cinnamal, Linalool, Limonene, Hydrolyzed Silk, Alpha-Isomethyl Ionone.