10% Ascorbic + 3% Ferulic Acid 8 / 10

The full breakdown

The evidence-leading daytime antioxidant pairing — ferulic acid roughly doubles the photoprotection of L-ascorbic acid in published research. Oxidises readily, so store cool and dark.

Ingredient breakdown

• L-Ascorbic Acid 10%
  Moderate evidence

  Commonly used to help prevent photoaging, reduce wrinkles and mitigate hyperpigmentation via antioxidant activity, tyrosinase inhibition and its role as a cofactor in collagen synthesis. A 2026 dermatology review confirms these clinical effects while noting L-ascorbic acid's intrinsic formulation instability drives ongoing use of pH adjustment, encapsulation and derivative forms.

• Ferulic Acid 3%
  Moderate evidence

  Commonly used to enhance the stability and antioxidant efficacy of vitamin C/E serums. Clinical trials of ferulic-acid-containing antioxidant combinations have shown improved outcomes in facial rejuvenation alongside microneedling and protection against pollution-induced skin damage — always tested as part of a combination formulation rather than in isolation.

Best suited to

All, Dull, Photo-exposed