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The COSRX Vitamin C Serum (The Vitamin C 23 Serum) is a high-strength serum with 23% pure ascorbic acid that revitalizes dull, uneven skin for a radiant complexion that glows from within.
Vitamin C is paired with vitamin E for enhanced antioxidant support, helping fade the look of dark spots and protect against daily environmental stress. The concentrated formula is ideal for experienced vitamin C users seeking visible results.
Dull or hyperpigmented skin and experienced vitamin C users.
At night, after cleansing and toning, apply a small amount and gently pat in. Start every other day and use sunscreen in the morning.
Shop the COSRX Vitamin C Serum at Skincare Lab and build a Korean skincare routine that fits your skin. Orders ship to Canada and the US, with free shipping over $70 CAD / $50 USD.
We typically process and ship orders within 1 week, with shipping costs calculated at checkout based on your location and selected method. Free shipping is available for orders over $50, depending on the promotion. Once your order ships, you will receive a confirmation email with a tracking number to monitor your package’s status. Standard shipping usually takes 5-7 business days, while express options are available for faster delivery. If you need to change your shipping address after placing an order, please contact us as soon as possible. In case of lost or stolen packages, we recommend reaching out to the carrier first, but our support team is happy to assist. For returns, we accept items within 1 week, provided they are unused and in their original packaging. Refunds are processed within 3-5 business days after we receive and inspect the returned item. Exchanges are also available if you need a different size or variant of a product. If you have any questions about shipping or returns, feel free to contact our support team.
