If you've ever wondered why a well-formulated Vitamin C serum costs more than a basic one, ferulic acid is usually part of the answer.
What ferulic acid actually is
A naturally occurring antioxidant found in the cell walls of plants like rice, oats, and apples. Its biological job in plants is to help protect against UV and oxidative damage. In skincare, it does the same thing for human skin — and for the other antioxidants it's formulated alongside.
The stabilization effect
L-Ascorbic Acid (Vitamin C) is notoriously unstable. Exposed to light, air, or heat, it oxidizes — turning the formula orange or brown and losing potency. Ferulic acid has been shown to double the stability of Vitamin C, extending its effective shelf life and ensuring the concentration on the label is the concentration reaching your skin.
The synergy effect
When ferulic acid is combined with Vitamins C and E, the antioxidant protection of the trio is significantly greater than any of the three alone. Studies show the combination provides roughly double the photoprotection compared to Vitamin C alone — which is why C.E. Glow is formulated with all three (15% L-Ascorbic Acid + 1% Vitamin E + 0.5% Ferulic Acid).
What ferulic acid does on its own
As a standalone antioxidant, ferulic acid helps neutralize free radicals from UV radiation and pollution. It's particularly effective at preventing future oxidative damage — slightly different positioning than Vitamin C, which works on both existing and future damage. Together they cover more ground.
Who benefits most
Anyone using C.E. Glow benefits from the ferulic acid in it. More broadly: anyone in a high-UV environment, anyone with signs of photodamage, or anyone who has had Vitamin C serums oxidize on them before — ferulic acid is why C.E. Glow won't.
