The 100% Pure Rosemary Grow Hair Serum is a rosemary oil for hair growth formulated with castor oil for hair and Vitamin E to nourish the scalp and support healthier-looking hair, ideal for fine and thinning hair types. Rosemary is traditionally used in hair care to support scalp health, and this expert hair oil formulation conditions the scalp and hair without heaviness. This lightweight rosemary oil for hair treatment absorbs deeply into the scalp, helping create an optimal environment for stronger hair over time. Massage into the scalp before washing, focusing on areas needing extra support, and leave on for at least 15 minutes before shampooing as part of a regular hair growth routine. Used consistently, this treatment helps support an optimal scalp environment and improved hair vitality. Made in the USA, vegan and packaged in glass.