Hair Thickening Serum - HAIR THICKENING SERUM 1.69OZBenefitsA lightweight, volume-boosting leave-in treatment for thicker looking hairVolumizes with hair building blocks biotin and keratin and fortified with marine collagen and seaweed extractIt is a lightweight leave in treatment that coats each hair strand creating multi-dimensional density without frizz leading to thicker fuller hairEasy to apply to either wet or dry hair and suitable for all hair typesParaben-free, SLS-free, SLES-free - Hair Thickening Serum