The VIRTUE Flourish Density Booster is a botanical-based nutrient infusion for the scalp. Ideal for those with weakened, thinning hair, the treatment is formulated to stimulate fatigued follicles and nourish the scalp. n The density booster combines patented alpha and gamma keratins with a Biomimetic Signal Peptide. Together, they help to boost hair strength and elasticity, while nourishing the scalp for a healthier appearance. n 100% drug-free. n Colour-safe, paraben-free and gluten-free. n Vegan.