Kérastase Densifique Serum Jeunesse Potion transforms thinning hair to leave you with voluminous locks. The non-greasy serum is formulated with the brand's rich Anti-Ox Cellular complex to protect hair and texturising polymers which work effectively to add body and bounce. Active ingredient Stemoxydine targets stem cells to promote hair growth by regenerating the roots and scalp, increasing hair density. Achieve fuller, manageable locks with enhanced shine and a silky smooth texture. E.N.