The Necessity Clinical Growth Hair Serum is a pre-wash hair oil treatment formulated with rosemary oil for hair growth, argan oil for hair and castor oil to support hair vitality. The formula is formulated with the brand's NutriFusion™ complex, a proprietary blend of botanical oils including Rosemary, Peppermint, Cold-Pressed Castor, Moringa Seed, Argan and Juniper, formulated to nourish the scalp and support hair follicles. This nutrient-rich serum helps support the appearance of improved hair density and thickness while moisturising and conditioning the scalp without residue. Apply a few drops to the scalp, massage in and leave on for one hour or overnight before washing out as part of a regular hair growth routine. Made in Australia, vegan and packaged in glass.