L'ferulic acid is a phenolic acid found in plant cell walls: rice bran, corn seeds, and oats. It belongs to the antioxidant family, where it plays a role that no other antioxidant performs in quite the same way.
Neutralizes free radicals by donating an electron without becoming unstable itself. But the reason formulators seek it out is different: stabilizes other antioxidants. In the presence of vitamin C and vitamin E it slows their oxidation and extends their activity on the skin, with a mutually enhancing effect documented in the literature. This is why it appears alongside vitamin C: together, they achieve far more than they would separately.
It works on photoaging and the dull complexion of people exposed daily to UV rays and pollution. Apply it in the morning, under sunscreen, with which it forms a two-level defense: the filter blocks the rays, while the antioxidant neutralizes the free radicals that still manage to form. The first changes in radiance can be observed after four to six weeks.
It is the antioxidant for the morning routine par excellence: it works preventively during the hours when the skin receives most of the day's oxidative stress. A step that does not produce an immediate visible effect but, when repeated, is among the most effective ways to maintain skin firmness and an even complexion over time.
On our blog, you can find an in-depth article on how ferulic acid works and which active ingredients it pairs with.