A serum that has a nongreasy, fast-absorbing formula to strengthen hair, leaving it stronger and denser. Hair Texture: Straight, Wavy, Curly, and Coily Hair Type: Fine, Medium, and Thick Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also vegan, gluten-free, and cruelty-fre