Tiam Vitamin Blending Powder Ascorbic Acid 10g is a pure Vitamin C powder made to mix into any toner, essence, serum, or moisturizer. Since it stays powder until mixed, it avoids the oxidation that weakens liquid Vitamin C over time. It brightens dull skin, fades dark spots, and lets you adjust concentration to your own tolerance. Suitable for all skin types. Order COD from koreanshopbd.com.