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Based on a Duke University patent combining 15% L-ascorbic acid with vitamin E and ferulic acid at a specific pH — widely cited as the benchmark formulation in vitamin C research.
Best for those wanting the most extensively studied vitamin C formulation available, particularly for photoaging, fine lines, and pigmentation, at a premium price point that reflects the research and patent behind it.
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SkinCeuticals C E Ferulic is a premium offering from SkinCeuticals that targets those with those wanting the most extensively studied vitamin C formulation available, particularly for photoaging, fine lines, and pigmentation, at a premium price point that reflects the research and patent behind it. The inclusion of L-Ascorbic Acid 15% provides high-concentration active vitamin c. Best suited for those wanting the most extensively studied vitamin C formulation available, particularly for photoaging, fine lines, and pigmentation, at a premium price point that reflects the research and patent behind it.
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TruSkin
A budget-accessible vitamin C serum — worth checking the ingredient list for stabilizers like ferulic acid, since pure L-ascorbic acid degrades quickly once opened.
Maelove
Frequently compared to SkinCeuticals C E Ferulic for a fraction of the price — a useful case study in how formulation science, not just brand name, drives efficacy.
Ole Henriksen
Combines vitamin C with banana extract, which contributes mild brightening compounds alongside the primary antioxidant action.