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C. E.O. 15% Vitamin C Brightening Serum

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Sunday Riley

C. E.O. 15% Vitamin C Brightening Serum

1 oz/ 30 mL

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A concentrated serum powered by 15% THD Ascorbate, a stable, oil-soluble form of Vitamin C that targets dark spots and loss of firmness. The texture is more like a lightweight lotion than a watery serum, making it feel more substantial and less likely to sting than traditional L-ascorbic acid formulas. It’s a solid morning staple for cutting through dullness, especially if you prefer a one-and-done step before moisturizer.

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What’s inside the formula

Key ingredients

  • Vitamin C

    A stable form of Vitamin C that brightens the complexion and protects against environmental damage.

  • Saccharide Isomerate Extract

Good to know

  • EU-labelled fragrance allergens

    Contains Limonene and Linalool — 2 fragrance allergens the EU requires to be named on the label. A common trigger for sensitive or reactive skin.

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