Ingredient guide
Ferulic Acid
ferulic acid
In short
Ferulic acid is a plant antioxidant known for boosting the stability and performance of vitamin C and E. It helps defend skin from environmental stressors and supports a more even, radiant look.
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What it is
Hydroxycinnamic acid from plant cell walls; best studied as a vitamin C and E potentiator. Combination of 15% ascorbic acid, 1% alpha-tocopherol, and 0.5% ferulic acid demonstrated 8-fold enhancement of UV protection versus vitamin C alone in human skin explant research; ferulic acid stabilises ascorbic acid against oxidative degradation and enhances penetration of lipophilic co-antioxidants; direct antioxidant via phenolic hydrogen donation; absorbs UV across 300–380 nm augmenting photoprotection when formulated at sufficient concentration.
When to use it
Mornings suit it best.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- Ferulic Acid
- Moisturise
- SPF
Also found as
Related
Where to find it
Options across the range, not a ranking. Run one through Lens and MIRU will tell you if it fits you.
SkinCeuticals C E Ferulic
Timeless 20% Vitamin C + E Ferulic Acid Serum
Fit comes first: the Lens checks each product against your skin before any retailer link. We may earn a commission, at no cost to you. Picks are editorial, never paid.
Common questions
What does ferulic acid do in skincare?
It helps neutralise surface free radicals and enhances the effectiveness of vitamins C and E. This can support a brighter, more even appearance and improved visible firmness.
Is ferulic acid suitable for sensitive skin?
Most people tolerate it well, though sensitive skin may prefer it in blends rather than high‑strength standalone products. It generally pairs well with hydrating formulas.
How do you use ferulic acid?
It’s often found in antioxidant serums used in the morning under sunscreen to help support protection from everyday environmental stress.
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Personal guidance, not medical advice.