Combines 20% L-ascorbic acid with ferulic acid to provide antioxidant and anti-aging benefits
Formulated at the precise concentration proven to deliver maximum amounts of vitamin C to the skin, Serum 20 AOX+ is designed to restore and protect healthy looking skin. This lightweight and fast-absorbing serum neutralizes free radicals, defends against environmental damage, and helps prevent accelerated aging.
•Helps reduce the appearance of fine lines and wrinkles, neutralizes free radicals, defends against environmental damage and stimulates collagen synthesis
•Using Duke-patented vitamin C technology, this serum delivers the highest level of L-ascorbic acid that can be absorbed by the skin
•Once absorbed, this serum can't be washed or rubbed off. It remains effective for a minimum of 72 hours, making it an excellent addition to sunscreen.
Studies show that when formulated properly (as all SkinCeuticals antioxidants are), a 20% concentration of L-ascorbic acid provides the maximum amount of vitamin C readily absorbed by the skin.
Formulated with AOX+ advanced antioxidant technology, Serum 20 combines ferulic acid with pure vitamin C at the precise pH and concentration to enhance performance and deliver maximum levels of L-ascorbic acid.
L-ascorbic acid has a reservoir effect, which means it can’t be washed off or rubbed off for a minimum of 72 hours.
The addition of ferulic acid enhances the antioxidant performance of vitamin C.
In the morning after cleansing, apply 4-5 drops to a dry face, neck and chest.
It is normal for vitamin C products to darken after opening due to air and light exposure. Any change in color does not affect the product's efficacy.
Key Ingredient 1
20% L-ascorbic acid (vitamin C): Inhibits UVA- and UVB-induced damage, promotes collagen synthesis, and has anti-inflammatory properties.
Key Ingredient 2
0.2% Ferulic acid: This plant-based antioxidant neutralizes free radicals, inhibits UV-induced melanogenesis, and has anti-inflammatory properties.