COSRX The Vitamin C 13 Serum

The COSRX The Vitamin C 13 Serum is a water-based formula that absorbs quickly and layers smoothly without feeling sticky. With 13% pure vitamin C, it offers a gentler option for those who want to improve skin tone without dealing with irritation. The light texture makes it easy to use alongside other skincare, and it doesn’t leave behind a greasy finish. Whether you're starting with vitamin C or simply prefer a milder approach, this serum fits well into a daily routine.

With regular use, the serum helps to fade dark spots, soften uneven tone, and smooth rough patches caused by dryness or exposure. It also works to improve the look of fine lines and tired-looking skin, bringing a clearer, more even appearance over time. The soft yellow shade is a natural result of the vitamin C content, not from added colour. COSRX The Vitamin C 13 Serum is straightforward and practical—ideal for anyone looking for visible results without overcomplicating things.

How to use:

After cleansing, during the serum phase, shake the bottle lightly once or twice from side to side and apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the inside of the face working towards the edges.