
Cosrx the Vitamin C 23 Serum
Cosrx the Vitamin C 23 Serum brightens dull skin, fades dark spots, and delivers a radiant, more even-looking complexion.
In stock — ships within 1 business day
- Ships from our US warehouse via FedEx/UPS
- 2–3 day express delivery (free shipping)
- Tracking number sent within 24 hours
- No customs, no duties, no surprises
- ✓Direct from authorized distributors
- ✓Sealed original packaging — batch code visible
- ✓Verify your batch number on Cosrx.com
- ✓Money back if not authentic — 2× refund guarantee
Visibly boosts radiance and evens tone for a clearer, lit-from-within look
Targets dark spots, post-acne marks, and discoloration
Smooths the look of fine lines while supporting a firmer appearance
Lightweight formula absorbs quickly without a greasy residue
Layers well under sunscreen and makeup for daily use
Cosrx the Vitamin C 23 Serum brightens dull skin, fades dark spots, and delivers a radiant, more even-looking complexion.
A simple daily ritual
- 1
After cleansing and toning at night, apply 2–3 drops to dry skin.
- 2
Gently press into face and neck, avoiding the eye area.
- 3
Allow to absorb, then follow with moisturizer.
- 4
Use SPF every morning; start 2–3 times per week and build to daily as tolerated.
- 5
Store in a cool, dark place and keep the cap tightly closed to maintain potency.
More information
23% Pure Vitamin C (Ascorbic Acid), Vitamin E (Tocopherol), Sodium Hyaluronate, Allantoin, Panthenol (Pro-Vitamin B5)
Standard shipping and returns apply. See our policy for details.
What customers are saying
No reviews yet — be the first.
More to discover

SkinCeuticals Serum 10 Anti Aging Vitamin C Serum for Sensitive Skin 30mL

SkinCeuticals Cell Cycle Catalyst Exfoliating Anti-Aging Serum 30mL

SkinCeuticals Resveratrol B E Antioxidant Night Serum 30mL

SkinCeuticals H.A. Intensifier Multi-Glycan Plumping Hydrating Serum
