Vitamin C Serum | Dark Spots & Brightening | Ferulic Acid

Pure L-Ascorbic Acid (the most researched form of Vitamin C) requires a very low pH to be effective — which is exactly what causes the tingling and sensitivity that many people experience. It also oxidises quickly after opening, turning the product orange and losing its potency. Ethyl Ascorbic Acid works at a skin-neutral pH, penetrates efficiently without needing the low-pH environment, is highly stable in the bottle, and causes none of the irritation. The trade-off is that the concentration (2%) appears lower than a 15% L-Ascorbic formula — but the delivery is more efficient and the skin tolerates it far better.

Yes — unlike pure L-Ascorbic Acid, Ethyl Ascorbic Acid does not cause photosensitivity, so there is no restriction on morning use. Always follow with SPF in the morning regardless of which Vitamin C form you use — this is a good skincare habit that Vitamin C amplifies rather than creates. Evening use works well alongside other actives.

The antioxidant glow effect is visible from the first week. For existing dark spots and post-blemish marks: visible lightening typically begins at weeks 4–6 with daily use. Clear improvement in overall tone evenness and pigmentation is visible at weeks 8–12. Deeper pigmentation (hormonal, sun damage) takes longer — 3–6 months of consistent daily use. Combining this serum with SPF 30+ every morning significantly speeds up the process by stopping new pigmentation forming.

Yes — Vitamin C and retinol are often used as a pair (Vitamin C in the morning, retinol at night) to get antioxidant protection during the day and cell turnover overnight. With AHAs, apply the Vitamin C serum first (thinnest texture goes first), then your AHA toner or treatment. Avoid layering multiple actives directly on top of each other on the same application — give each one a minute to absorb before the next.