The vitamin C in this serum is ascorbyl palmitate, which is an oil-soluble derivative of L-ascorbic acid (pure vitamin C). This form is commonly used in cosmetics for its stability and gentler profile. Unlike some high-strength, water-soluble ascorbic acid formulas that can be potent but potentially irritating for sensitive skin, ascorbyl palmitate is known to provide antioxidant protection and help improve the look of uneven skin tone with a lower risk of causing stinging or discomfort.
Its mechanism is complementary: it helps protect skin from external oxidative stress from factors like pollution and UV exposure (though it is not a substitute for sunscreen). Over time, consistent use may contribute to a more radiant, less tired-looking complexion. The choice of this derivative, combined with other calming ingredients in the formula, makes this serum a consideration for those seeking vitamin C benefits but who have skin that is reactive or prefers a milder introduction to antioxidants.