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Cosrx The Vitamin C 13 Serum - 20ml is a COSRX skincare product designed for a focused daily routine.Why you’ll love it: Helps refine the look of uneven texture or blemishes. Supports a smoother, more even-looking complexion. Built around a clearly identified active ingredient.
Cosrx The Vitamin C 13 Serum - 20ml is a COSRX skincare product designed for a focused daily routine.
Why you’ll love it: Helps refine the look of uneven texture or blemishes. Supports a smoother, more even-looking complexion. Built around a clearly identified active ingredient.
How To Use
- 1 Apply a small amount to clean, dry skin, following the product directions.
- 2 Follow with moisturiser; introduce leave-on actives gradually.
- 3 Use sunscreen every morning when using exfoliating or retinol products.
Tip: Patch test first. Avoid combining multiple strong actives in one routine unless your skin is already accustomed to them.
Why You’ll Love It
Targeted active care
Helps refine the look of uneven texture or blemishes.
Visible clarity
Supports a smoother, more even-looking complexion.
Thoughtful formula
Built around a clearly identified active ingredient.
Routine-friendly
Layers into a gradual, consistent routine.
Key Ingredients
Vitamin C | Vitamin E | Hyaluronic Acid
Suitable For
Skin type stated on product
Full Ingredients
Water, Ascorbic Acid, Butylene Glycol, Propanediol, Tromethamine, Panthenol, Sodium Hyaluronate, Tocotrienol, Allantoin, Ethyl Ascorbyl Ether, Ectoin, Ferulic Acid
Frequently Asked Questions
Can I use it every day?
Start slowly and increase only as your skin tolerates it.
Do I need sunscreen?
Yes. Daily sunscreen is essential when using exfoliating acids, retinol or vitamin C.
Can I mix it with other actives?
Keep routines simple at first and avoid layering strong exfoliants with retinol in the same routine.
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