This Kerasilk Keratine Treatment Smoothing Finishing Serum is a travel-sized product containing 22ml of natural ingredients, specifically keratin, to smooth and protect all hair types. Part of the Kerasilk product line, this serum is designed to provide a smoothing effect on the hair due to its all-natural composition. Perfect for on-the-go use, this serum is ideal for those looking to improve the overall health and appearance of their hair with the benefits of keratin. 15 available offers for the 15 accepted