Hair powder Schwarzkopf Professional Osis Dust It Volumising Powder 10g Schwarzkopf OSI025 €17.49 Schwarzkopf Professional OSiS+ Dust It Volume Powder 1 is a mattifying powder that gives hair a matte finish. Multi-purpose, control and definition and incredible volume. Due to the flexible setting degree (the more powder used, the stronger the effect) it is suitable for all types of styles. ADD TO CART