[cosrx] the vitamin c 23 serum 20g

The Science of “Hyper Brightening”
The COSRX Vitamin C 23 Serum solves the problem of “stubborn dullness.” L Ascorbic Acid is the most effective form of Vitamin C, but it is notoriously difficult to stabilize. COSRX uses a specialized bi phase oil and water formula to keep the 23% concentration potent. This high dosage allows the serum to travel deep into the dermis to inhibit melanin production (fading dark spots) and neutralize free radicals that cause premature wrinkles.

Key Ingredients & Benefits:

23% Pure Vitamin C (L Ascorbic Acid): A gold standard antioxidant that brightens the complexion, improves skin texture, and firms the skin by stimulating collagen.

Super Vitamin E (Tocotrienol): Boasts 50x the antioxidant power of regular Vitamin E; it works in perfect synergy with Vitamin C to double the skin’s defense against UV damage.

Sodium Hyaluronate: Pulls moisture into the skin to prevent the “tingling” or dryness sometimes associated with high strength acids.

Allantoin: A soothing agent derived from comfrey root that calms the skin and prevents irritation during the brightening process.

Caffeine: Works to depuff and revitalize the skin, giving it a more “awake” and rested appearance.

Why Your Customers Will Love It:

The “Glass Skin” Finish: It provides an immediate, healthy sheen that makes the skin look revitalized and hydrated.

Rapid Fading: Users often see a visible reduction in post acne marks and sun spots within just 2 to 4 weeks of consistent use.

Clinical Precision: Part of “The RX” line, it is formulated with minimal ingredients to ensure maximum potency and clinical grade results.

Oxidation Control: The specialized dark glass bottle and dropper system are designed to minimize air exposure and light degradation.

How to Use:

Prep: After cleansing, shake the bottle gently 1–2 times to mix the oil and water layers.

Apply: Use 2–3 drops and massage into the face, focusing on areas with dark spots. (A slight “tingling” sensation is normal for a high strength 23% formula).

Storage: To maintain maximum potency, store the bottle in the refrigerator after opening.

Pro Tip: For the “Ultimate Sun Defense,” apply this in your Morning Routine under your sunscreen. Vitamin C and SPF work together to provide much higher protection against environmental damage than sunscreen alone.

Technical Specs:
Feature Detail
Main Active 23% Pure Vitamin C + Super Vitamin E
Texture Lightweight, Bi phase Liquid (Slightly Oily)
Volume 20g (UV Protected Glass Bottle)
Target Concerns Dark Spots, Sun Damage, Dullness, Fine Lines