Shampoo SUBRINA RECEPT for hair growth CAFFEINE TANDEM with guarana extract. Guarana extract contains a high percentage of natural caffeine, which enhances scalp circulation, stimulates hair follicles, and promotes hair growth. The shampoo is specifically formulated for use on sensitive scalps. This is achieved through the inclusion of oat milk extract, which moisturizes and soothes scalp. Oat phenols reduce inflammation and help alleviate itchiness. It also contains a rich supply of B vitamins and polysaccharides, which aid in hair hydration and maintaining softness. The shampoo has a scalp-friendly pH and is scented with perfume oil that is free of allergens. It is free of silicone oils and dyes. Vegan formula.