Tigi Catwalk Curlesque Defining Shampoo is a sulfate-free shampoo that works to smooth your natural curls. Prep your curls for styling with this rich marine botanical formula. The seaweed & sea fennel (don't worry...it still smell marvelous!) ingredients smooth your hair cuticles & calm the frizz those curly tresses often have. Get maintained, defined & oh-so-bouncy curls from the cucumber water, whether your hair is wavy, curly or tightly spiraled! To use best, concentrate on your scalp when you work it through your hair. Rinse thoroughly.