Cosrx Advance The Vitamin C 23 Serum 20ml

COSRX The Vitamin C 23 Serum is a concentrated brightening treatment designed to target stubborn dark spots, uneven tone, and dull-looking skin. With a high percentage of pure vitamin C, it works directly on pigmentation while helping to improve overall skin clarity. The formula feels lightweight but potent, making it a strong option for those ready to step up their brightening routine.

What makes COSRX The Vitamin C 23 Serum stand out is how it pairs pure vitamin C with stabilizing and hydrating ingredients. Vitamin E supports antioxidant protection, while hyaluronic acid helps maintain moisture balance. Together, they help reduce irritation while enhancing results. With consistent use, COSRX The Vitamin C 23 Serum can improve skin tone and boost natural radiance. For added soothing care, pair it with COSRX Advanced Snail 96 Mucin Power Essence.

Key Benefits

• Powerful Brightening — 23% pure vitamin C helps visibly fade dark spots and pigmentation
• Evens Skin Tone — Improves overall clarity for a more uniform complexion
• Antioxidant Support — Vitamin E helps protect skin from environmental stressors
• Hydrating Balance — Hyaluronic acid prevents dryness while using actives
• Visible Results — COSRX The Vitamin C 23 Serum improves radiance with consistent use

Key Ingredients

Here’s what powers the COSRX The Vitamin C 23 Serum:

Ascorbic Acid (Vitamin C 23%)
A high concentration of pure vitamin C that helps reduce dark spots, acne marks, and uneven skin tone. It also supports collagen production for smoother-looking skin.

Tocopherol (Vitamin E)
Vitamin E works alongside vitamin C to enhance antioxidant protection. It also helps reduce irritation and supports skin barrier health.

Hyaluronic Acid
This ingredient helps attract and retain moisture in the skin. It keeps the skin hydrated and plump while using a strong active like vitamin C.

Allantoin
Known for its calming properties, allantoin helps soothe the skin and reduce potential irritation from active ingredients.

Panthenol (Pro-Vitamin B5)
Panthenol hydrates and supports skin barrier repair. It keeps the skin comfortable and balanced during treatment.

Adenosine
Adenosine helps improve skin texture and supports smoother-looking skin. It also contributes to overall skin vitality.

Best For

• ✅ Oily Skin — helps brighten and balance
• ✅ Combination Skin — evens tone
• ✅ Normal Skin — boosts radiance
• ✅ Dull Skin — restores glow

Targets These Concerns

• Dark spots
• Acne marks
• Uneven skin tone
• Dullness

Not Recommended For

• ⚠️ Sensitive skin — high vitamin C concentration may cause irritation

How to Use

1. Apply Serum — Use 2–3 drops on clean, dry skin
2. Pat Gently — Spread evenly and allow it to absorb fully
3. Moisturize — Follow with a soothing moisturizer
4. Start Slow — Begin with a few times a week, then increase use

Use: PM
Where in routine: After toner, before moisturizer
Pro Tip: Store in the refrigerator to maintain freshness and reduce oxidation

Disclaimer

Please check the product in front of the delivery person. Once delivery is completed, no complaints or exchanges will be accepted. Product packaging may change from time to time, so you may receive either the old or new version — this is completely normal.