Moisturize, Repair, and Strengthen Hypoallergenic Formula Dermatologist Tested Free From Sulfates, Silicones, Mineral Oil Vegan Color Safe The Original Curl Expert Since 1984 This hydrating, dermatologist tested conditioner works to improve the look of hair health and repair damage. Infused with unique bond building technology, vegan collagen, and hyaluronic acid to strengthen, hydrate and increase elasticity.