Color Last Shampoo is infused with micro-dosed soybean oil and stearic acid to gently cleanse while helping protect color vibrancy for up to 4 weeks*. Its low pH formula maintains color integrity, adds shine, and nourishes hair without stripping. Soybean oil and stearic acid work to hydrate, strengthen, and smooth each strand. Vegan formula—free from animal-derived ingredients, parabens, mineral oil, and colorants.