LAYERLAB Intensive Pure Vitamin C 17% Serum, Ferulic Acid, 0.67 fl oz

17% PURE VITAMIN C: A high concentration of L-ascorbic acid in a double-layer liposome system for visible radiance and a more even-looking complexion | C + E + FERULIC ANTIOXIDANT BLEND: 1% vitamin E, 0.1% ferulic acid and 1% ethyl ascorbic acid work with glutathione and phloretin to help defend against visible environmental stress | LONG-LASTING ANTIOXIDANT ACTION: Key antioxidant ingredients showed antioxidant activity lasting up to 400 hours in an in vitro raw-material test | FOR DULLNESS, DARK SPOTS & FINE LINES: Targets the look of dull tone, dark spots and fine lines, with ceramide NP and centella asiatica extract for a comfortable feel | HOW TO USE: Start with a few drops once daily after toner and patch test first, as pure vitamin C may tingle. Wear sunscreen by day and keep the cap tightly closed. 0.67 fl oz (20 mL)