Achieve visibly thicker hair with the Grow Gorgeous Hair Density Serum Intense. Developed with a high concentration of technologies for maximum efficacy, the formula aims to enhance the appearance of fine, deflated hair to promote fuller, healthier-looking locks. Providing hair-enhancing properties, the gluten-free serum blends a complex of powerful actives for elevated results, including Zinc (a unique glucose compound) and Glycine (a key amino acid for hair health). Delivering visible results in as little as four weeks, the hair density serum increases the thickness of each hair strand by 13%*, lending locks a fuller, thicker-looking appearance. The solution also contains an extra 3% concentration of Caffeine for advanced benefits, plus Hyaluronic Acid to penetrate the scalp and improve hydration for a luscious, voluminous effect. After use, hair appears fuller, shinier and visibly denser. Free from gluten, parabens, silicones and sulfates. Vegan. Cruelty-free. Please Note: This product is available as Hair Growth Serum Intense in certain markets. The product formulation is the same in all markets. *Based on an independent user trial and instrumental testing.