Vitamin C is a skincare staple for brightening, evening out skin tone, and addressing dark spots. COSRX makes it easy to choose the right fit by offering two options: The Vitamin C 13 Serum and The Vitamin C 23 Serum. While both share the same hero ingredient, their concentrations cater to different needs and skin tolerances. Let’s break down the 13% formula first, then see how it measures up against its stronger sibling.

The COSRX The Vitamin C 13 Serum is made for those who want visible brightening results without harsh side effects. With 13% pure vitamin C (ascorbic acid), it helps fade pigmentation, smooth uneven tone, and refresh tired-looking skin. This concentration is ideal for beginners or sensitive skin types who want a steady, irritation-free approach. It delivers results gradually, making it easy to work into your everyday routine.

Another advantage of the 13% formula is how balanced it feels on the skin. COSRX combined vitamin C with hydrating and soothing ingredients to protect the skin barrier while targeting discoloration. This careful formulation reduces the chance of redness or stinging, problems that often discourage people from sticking with vitamin C. The comfort-first approach helps ensure consistent use, which is the real secret to seeing improvements.

So, where does the COSRX The Vitamin C 23 Serum fit in? At nearly double the strength, it’s formulated for experienced users who want faster results in addressing dark spots and uneven texture. The higher concentration works more intensively but can also bring a higher risk of sensitivity. Essentially, 13% is best for those starting out or staying cautious, while 23% is a better match for those ready for a stronger formula.

Deciding between the two comes down to your skin’s tolerance and goals. The 13% version is a reliable option for daily care and steady progress, while the 23% version is for those aiming to tackle stubborn spots more aggressively. Both carry COSRX’s straightforward, effective approach to skincare, giving you the flexibility to choose what suits your routine best.

Whether you’re easing into vitamin C or stepping up to a stronger formula, COSRX offers an option that meets you where you are. The Vitamin C 13 Serum prioritizes comfort and steady results, while the Vitamin C 23 Serum delivers higher-intensity care. Consistency is key—whichever you choose, regular use will help you achieve a clearer, more even complexion.

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Dark Spots and Pigmentation Bundle

$79.90 $138.60

The Dark Spots and Pigmentation Bundle is a thoughtfully assembled collection designed to revitalize and brighten your skin. Formulated to combat dullness, dark spots, and uneven tone, each product in this set works synergistically to enhance your natural glow. Infused with potent ingredients like vitamin C, niacinamide, and hydrating extracts, this bundle nourishes, evens out skin tone, and promotes a luminous, healthy complexion for all skin types.