Brand new. Never opened. As you can see in the photos, the outer seal on the bottle is still intact. I purchased this directly from Drmtlgy.com a few weeks ago and never used it. I decided to continue using a CE Ferulic from a different brand. Volume: 30 mL (1 fl oz) This advanced formula contains a potent blend of Vitamin C (L-Ascorbic Acid) 15%, Vitamin E 1%, and Ferulic Acid 0.5%. Our formula provides antioxidant protection, reduces hyperpigmentation, and minimizes fine lines. Unique combination of Vitamin C, E, Ferulic Acid, Hyaluronic Acid, and Acetyl Octapeptide-3 Brightens the appearance of overall complexion Provides advanced environmental protection against damaging free radicals When paired together, Vitamin C, Vitamin E, and Ferulic Acid are clinically proven to provide superior antioxidant protection. Our pure l-ascorbic acid (vitamin C) is formulated at an acidic pH between the 2.20-3.20 pH range and has a concentration of 15%. Why are antioxidants important? Antioxidants neutralize damaging free radicals, which contribute to premature aging. Vitamin C E + F serum has a unique combination of pure l-ascorbic acid (Vitamin C), Vitamin E, and Ferulic Acid that is proven to provide superior antioxidant protection and brighten the appearance of the complexion. Combined Hyaluronic Acid and Acetyl Octapeptide-3 work together to visibly plump and smooth the skin. This formula minimizes signs of hyperpigmentation and reduces the appearance of fine lines.