Our Herbal Hair Roller Essence contains PCA sodium, ginger root extract, Polygonum multiflorum extract. It can strengthen the roots of lush hair, reduce dryness and promote healthy hair. The way to use it is very simple: the first step, wash hair, rub until dry. Step two, then spray the essence onto the roller. Step three, finally roll it into your hair. It can also make hair more lush, reduce dryness, promote hair health, and give you smooth, beautiful hair.