Udo Walz Shine Rose + Feige, 100 , Hair Serums for Women, The Udo Walz Shine Rose + Feige leave-in treatment gives your hair everything it needs after washing. Characteristics: gives hair shine repairs damaged hair structure prevents frizzy hair smooths the surface of your hair Ingredients: no sulphates no silicones vegan product How to use: Apply to the lengths and ends of dry or wet hair. Do not rinse.