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An exclusive collaboration between popular Korean acne brand COSRX and Charlotte Cho, the Triple C Lightning Liquid is a powerful vitamin C serum. Launched in 2017, Triple C sold out within four hours of launching, and has since become a cult favorite!

 ⚡WHAT DOES VITAMIN C DO FOR YOUR SKIN? It attacks pigmentation and immediately lightens brown spots and acne scars, bringing radiance and balance back to skin.

⚡KEY INGREDIENTS: Contains 20.5% pure vitamin C (ascorbic acid) and 72% black chokeberry, a special ingredient that stabilizes the high concentration of vitamin C to make sure skin remains hydrated and smooth. 


– All skin types
– Dull skin
– Hyperpigmentation (sun spots, acne scars, melasma)

    ⚡IT'S SUPER SUPER SUPER FRESH. In order for a pure vitamin C serum to be effective, it must be fresh. That's why we're making all Triple C Lightning Liquids in small batches and air shipping them directly from Korea to ensure that the serums are fresh and high quality. To maximize the effectiveness of your serum, it's best to store it in the refrigerator or a cool, dark place. Keep the bottle air tight!

    – pH level of 3
    – Fragrance Free 
    – 1 oz/30 ml

    Featured on Refinery 29

    How To:

    If you’re new to acids or have sensitive skin, start by mixing 2-3 drops in your moisturizer and applying onto your face every night. If you see no signs of irritation after two weeks, apply 1-2 drops directly onto your skin every other night, always following with a hydrating moisturizer. Gradually work your way up to applying the serum every night. This Vitamin C serum is recommended as a night treatment. If used before sun exposure, make sure to apply sunscreen.

    Triple C Lightning Liquid is a highly concentrated serum with pure Vitamin C, so your skin may feel sensitive or tingly upon application.

    For more information on how to store Vitamin C and other skin care tips, please visit The Klog.

    Triple C Lightning Liquid has a rating of 4.1 stars based on 890 reviews.