Your clients can now enjoy healthy hair all the time! Keratin Booster is a unique and powerful spray that enhances and amplifies any Keratherapy zero formaldehyde keratin treatment, resulting in an even distribution of keratin and amino acids throughout the client’s hair. This professional use leave-in spray ensures uniform curl and volume reduction, frizz control, shine and conditioning from roots to ends and helps to extend the longevity of the keratin treatment.