VITAMIN C SERUM. Benefits: Ideal for sensitive, dull or uneven skin. Packaged in an airless pump, this formula is much less likely to oxidize or change color, so it lasts longer than many other Vitamin C serums. Fits seamlessly into any skin care regimen. Non-greasy and absorbs quickly. Non-comedogenic (wont clog pores). Dermatologist Recommended. Formulated Without: Dyes. Parabens. Gluten. Fragrance. Key Ingredients: Tetrahexyldecyl Ascorbate: Highly stable Vitamin C derivative that helps to enhance skins brightness. Ceramides: Help to hydrate and retain the skins moisture.