Our hair styling elastin contains acrylic (ester) copolymer, sodium lauryl ether sulfate. It lasts forever, doesn't peel off, defines the curl style, and is shiny and moisturizing. Its use method is very simple: wash the hair and blow dry, then take a small amount of this product evenly spread on the hair, and finally after use, hold the hair up and down to make it rebound and curl. And can be more elastic, more shiny.