This hair serum combines two winning technologies to strengthen very damaged hair by frequent bleaching, coloring, or chemical treatments. It prevents split ends, prevents future hair breakage, and creates long-lasting shine and softness. Formulated with two different types of hair oils to give hair the ultimate care, while leaving hair light and smooth without any greasy residue. SRS technology is thermo-responsive innovation that can be re-activated by low-temperature heat, allowing for optimum heat styling. Safe on colored hair so your hair color can thrive without sacrificing the health of your hair.