Evo Water Killer Dry Shampoo 50ml Genuine Product. Concept. a two-in-one dry shampoo and styling spray that makes hair feel and smell fresh again. Benefits. helps prevent damage to hair through washing and blow drying. saves time. saves water. can be used anytime, anywhere. can also be used as a texturising styling spray. How to use. shake well. hold the can 20cm from the hair and spray evenly. as a styling product, leave in. as a dry shampoo, leave for 2 minutes then brush thoroughly. recommended for all hair types. vegan / cruelty free / made without sulfates, parabens or gluten.