For thicker, denser, fuller and healthier hair, this concentrated serum unites potent natural extracts, peptides and caffeine to transform your hair from root to tip. A combination of potent natural extracts (Larix Europaea Wood Extract and Camellia Sinensis Leaf Extract), peptide complexes and caffeine power this ultra-lightweight formulation, united in an emollient base so that it can effectively penetrate your scalp and work deep within hair follicles. Ideally, use it at bedtime, applying it to a clean, dry scalp before massaging in thoroughly and leaving it on (some may prefer to rinse in the morning).