WHAT IT IS: Invigorating serum with the correct percentage of Organic Rosemary that’s been clinically proven to be as effective as prescription drugs that stimulate hair growth from active and inactive hair follicles for visibly increased fullness. See results in 3-6 months of regular use. SIZE: 1 fl oz HOW TO USE: Before washing hair, massage scalp with serum, concentrating on areas that need the most re-growth. Leave on for a minimum of 15 minutes before shampooing. Use 3-7 times a week for 3-6 months to see results. COMPLETE LIST OF INGREDIENTS: Organic Helianthus Annuus (Sunflower) Seed Oil, Ricinus Communis (Castor) Seed Oil, Organic Rosmarinus Officinalis (Rosemary) Leaf Extract, Organic Rosmarinus Officinalis (Rosemary) Leaf Essential Oil, Tocopherol (Vitamin E)