Our Paraben free 5-in-1 serum provides 5 styling & treatment benefits you need for beautiful, healthy hair in one simple step. Kera serum conditions, seals cuticle & controls frizz, strengthens, polish and humidity resistant; visibly improving the appearance of hair immediately. When used with heat, shine and smoothing are intensified. Also, EXTREMELY effective in taming curls making them shiny and bouncy. Protects hair, your color and thermal safe.