SkinCeuticals C E Ferulic is the most studied topical antioxidant serum in dermatology. Its patented formulation — 15% pure L-ascorbic acid, 1% alpha-tocopherol (vitamin E), and 0.5% ferulic acid — was developed based on research published in the Journal of Investigative Dermatology demonstrating that this specific ratio enhances antioxidant performance by a factor of eight compared to vitamin C alone.
Key Ingredients and How They Work
L-ascorbic acid (15%) is the only form of vitamin C with peer-reviewed evidence supporting its ability to penetrate the skin barrier at this concentration. Once absorbed, it neutralizes free radicals generated by UV exposure, pollution, and infrared radiation — the primary drivers of premature skin aging. Alpha-tocopherol (vitamin E, 1%) works synergistically with vitamin C to strengthen the skin's lipid barrier. Ferulic acid (0.5%) stabilizes both vitamins C and E, extending their protective activity and doubling the serum's photoprotection capacity. The formulation is pH-adjusted to 2.0-3.5, the range at which L-ascorbic acid is most bioavailable.
How to Use
Apply 4-5 drops to clean, dry skin every morning. Smooth over face, neck, and chest. Allow 1-2 minutes to absorb before applying moisturizer and sunscreen. This is a treatment product — use it after cleansing and toning, before heavier creams. The serum has a slight oily texture that absorbs fully within minutes. The amber tint is normal and does not indicate oxidation; discard only if the serum turns dark brown or orange.
What to Expect
Within the first 2-4 weeks, most users notice improved skin brightness and a more even complexion. Reduction in the appearance of fine lines and firmer-feeling skin typically becomes noticeable at the 12-16 week mark with daily use. Published clinical data supports continued improvement through 6 months of consistent application. This serum provides antioxidant protection for up to 72 hours, meaning occasional missed days do not reset your results.
Who Should Use This
Normal to dry skin types seeking comprehensive antioxidant protection and visible anti-aging benefits. Particularly effective for patients concerned with photoaging, hyperpigmentation, and loss of firmness. Not recommended for oily or acne-prone skin — consider SkinCeuticals Phloretin CF or Silymarin CF instead.
Frequently recommended by ELLEMES providers as the cornerstone of a clinical anti-aging routine. Pairs with in-office treatments like chemical peels and laser resurfacing to protect and extend treatment results.
Manufacturer: SkinCeuticals
Country of Origin: USA
