Super C Ferulic

The gold standard vitamin C formulation: 20% stabilised ascorbic acid with ferulic acid and vitamin E. Ferulic acid does two things — it stabilises the vitamin C so it doesn't oxidise, and it doubles its efficacy, which is why this combination appears in the most evidence-backed vitamin C products. The result is meaningful antioxidant protection and genuine brightening, delivered at a concentration that produces visible results. The honest caveat: this is for resilient skin that has used vitamin C before and handled it without irritation. If your skin is sensitive, reactive or rosacea-prone, this will likely be too strong — C-Tetra Luxe or C-Tetra Advanced are the better choice. For everyone else, this is the version that earns its price.