COSRX The Vitamin C 13 Serum 20ml — yellow dropper bottle on white background

COSRX

[Cosrx] The Vitamin C 13 Serum 20ml

$33.00 $46.00
Save $13.00
  • 100% authentic
  • Ships from Seoul
  • Tracked, 3–5 business days
SIZE:20ml
Quantity:

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Are your products authentic?

Yes. Every product comes from our partner in Seoul, who buys from the brand owners, their manufacturers and verified supply routes. We do not sell copies or grey imports.

Why does my order ship from Korea?

We ship every order straight from Seoul by tracked express. Shipping costs the same per parcel, so one bigger order saves you the most on shipping.

Details

Daily brightening care Fades blemishies, dark spots and freckles Improves overall tone Refines skin texture Reduces size of pores

How to use

Cleanse your skin and put a toner. Then apply few drops of serum to the skin. User fingertips to gently massage and absorb the serum, starting from the inside of the face working towards the edges.

Ingredients

13% Pure Vitamin C

Improves discoloration and uneven skin tone.

Tocotrienol(Super Vitamin E)

Boasts up to 50 times greater anti-oxidizing efficacy than Tocopherol.

Hyaluronic Acid and Allantoin

Provides moisture and relieves irritation.

FAQ

COSRX The Vitamin C 13 Serum uses 13% pure ascorbic acid with 50x the antioxidant power of tocopherol to fade dark spots, refine pores, and brighten dull skin.
Use it after toner or essence and before moisturizer. Start slowly if your routine already includes strong active ingredients.
It is most relevant for oily or acne-prone skin, dull or uneven-looking skin. If you are unsure, patch test before full use.
Yes, but introduce it carefully if you also use exfoliating acids, retinoids, or strong vitamin C. Alternate use if your skin feels sensitive.
Review the ingredient list, size, usage directions, and any skin concern notes on the product page. For allergies, pregnancy, or medical skin conditions, confirm suitability before use.

Delivery

Ships from Seoul, South Korea. Processing: 1–2 business days. Express: 3–5 business days; standard: 2–3 weeks, where available.