KÉrastase Densifique Density Activator is an advanced stem cell science formula that helps to maintain hair density, helping hair to have fuller body & better texture. This non-greasy, leave-in treatment is suitable for both men & women. KÉrastase Densifique is the perfect solution for sensitive scalps & thinning hair to give you fuller looking & beautifully textured hair. Its formula, which combines Stemoxydine & Vitamins B3, B5 & B6 reveals new hair & creates visible hair mass.