Schwarzkopf Professional Osis+ Sparkler, 500 ml, Other Styling for Women. This styling product from Schwarzkopf Professional Osis+ Sparkler allows you to accentuate the natural texture of your hair, give it definition and shape, and create the perfect styling like in the hands of a professional. It leaves hair beautifully shiny and full of vitality, gives an appealing shine, tames unruly hair, and provides hydration and nourishment for your hair. This is a vegan product. Apply to dry hair, especially to the lengths and ends.