:Glowelle Hair Straightening Serum is a silicone-free and paraben-free hair serum that is made especially for chemically-treated and damaged hair best for all time nourishment. It gives smoother and lighter to touch. Also, lso repairs damaged hair and increases your hair manageability leaving it shiny and glossy. D-Panthenol in it, is good for rough textured hair because it can smooth out the imperfections in the hair shaft and acts as an anti-inflammatory agent.