Invigorate hair with the Christophe Robin Cleansing Thickening Paste, a shampoo for men that is formulated with Tahitian algae and pure rassoul clay. Designed to boost the appearance of thinning or fine hair, this product features a blend of 95% natural-origin ingredients. High in minerals, this shampoo can help remove impurities that clog the scalp, giving fullness to the roots. A concentrate of Tahitian algae helps the hair to feel thicker and stronger. To deep cleanse the hair and scalp, use once or twice a week. The product foams instantly when it comes into contact with water. Massage a small amount into the hair, paying close attention to the roots before rinsing thoroughly.