COSRX Vitamin C 23 Serum (20ml)
$22.98
Skip to product information
COSRX Vitamin C 23 Serum (20ml)
$22.98
A potent dose of glow. COSRX's cult Vitamin C 23 Serum is formulated with 23% pure L-Ascorbic Acid to visibly fade dark spots, brighten dullness, and even out tone — with vitamin E and hyaluronic acid to cushion and hydrate as it works.
Why you'll love it
- High-potency brightening: 23% pure vitamin C targets dark spots, hyperpigmentation, and uneven tone.
- Antioxidant glow: Defends against environmental stress for a radiant, youthful-looking finish.
- Fast-absorbing: A lightweight formula that sinks in and layers cleanly.
How to use
After toner, apply a few drops in the evening, avoiding the eye area. Introduce gradually and always follow with SPF the next morning. Best for normal to oily skin.
Loved by reviewers
- From COSRX — a global K-beauty staple rated 4.9 stars by reviewers.
- Fans report visibly brighter, more even skin with consistent use.
- A repeat-buy for anyone tackling dark spots and dullness.
Details
Size: 20ml · 23% vitamin C serum · Best for normal to oily skin.
Good to know
Is this product authentic?
Yes. Every product SKADI sells, including COSRX Vitamin C 23 Serum (20ml), is sourced through vetted suppliers and ships in its original manufacturer packaging.
How fast is shipping?
Most orders ship from within the United States and are processed within 1–3 business days. Estimated delivery times are shown at checkout.
Can I return it?
Unopened, unused items in their original packaging can be returned within 14 days. For hygiene reasons, opened skincare can only be returned if it arrived damaged, defective, or incorrect.
How long does it last once opened?
Check the packaging: the expiry or manufacture date is printed on the box or container, and the open-jar (PAO) symbol shows how many months the product stays fresh after opening. Store away from direct sunlight with the cap closed.