For thinning hair. Multi-protein formula with Omega-6 essential fatty acids. Helps reinforce hair strands for noticeably thicker hair. Improved scalp coverage. Not tested on animals. This shampoo is infused with a blend of thickening polymers, naturally-derived proteins and an Omega-6 essential fatty acid derivative. It leaves hair looking more healthy with a thicker, healthy-improved scalp coverage. Can be used daily. Apply shampoo to wet hair and massage uniformly with fingertips over entire scalp. Rinse. May be used daily - or as often as needed - to help thicken hair and maintain a healthy scalp. In case of contact with eyes, rinse immediately with water. 250ml. Brand : Kiehl's. Hair Concern : Thinning. Hair Type : All Hair Types. Treatment Type : Shampoo.