Keratin K-Trix 5 Thermal Active Smoothing Treatment - 115ml/3.92ozA thermally activated smoothing hair treatment Works with the heat of a styling iron to smooth hair cuticle Formulated with KeratrixTM, a unique compound that utilizes sustained release technology Gradually delivers strengthening & smoothing proteins Creates soft, hydrated styles that last up to five days To use: Before blow drying, apply a small amount to hair & work through evenly