POTENT C-E FERULIC POWER SERUM 1.0OZ. Benefits: Helps defy 7 signs of aging: Fine lines, wrinkles, uneven tone, loss of brightness, loss of firmness, uneven texture and dehydration. Key Ingredients: 20% THD Ascorbate Vitamin C: high-potency, brightening vitamin C that helps defy 7 signs of aging at once. 3% Vitamin E and 2% Ferulic Acid: provide antioxidant benefits and help boost vitamin C performance. Turmeric, Ginseng and Squalane: improve the look of uneven tone, dullness and dehydration. Research Results: Based on a 28-day consumer perception study with 35 female subjects:. *Based on a 4-week consumer perception study on 33 women ranging in age from 49 to 65.