Advanced The Vitamin C 23 Serum [RENEWED VERSION]

Power-Brightening Pure Vitamin C Serum. #HIGH-CONCENTRATION #Brightening #PUREVITAMINC

COSRX’s Advanced The Vitamin C 23 Serum features a high strength 23% pure vitamin C with Super Vitamin E and Glutathione to target uneven skin tone, early signs of aging, and dullness. It helps resurface dull areas, reduce the appearance pores, and leave skin smoother and more even-looking.

Providing a powerful brightening care, it is ideal for experienced vitamin C users seeking visible brightening and firmer skin, it absorbs smoothly to leave the complexion more radiant, supple, and revitalised.

Formulated with Pure Vitamin C 23%
(High-concentration) that provides radiance and lights up skin tone, Super Vitamin E (Tocotrienol) and Glutathione working together to revitalise the skin with powerful antioxidant care, and Adenosine and Niacinamide boosting firmness and brighten the complexion. Vitamin C helps support collagen, while Adenosine boosts this effect for enhanced resilience. This high-strength formula stays fresh, absorbs smoothly, and delivers visible brightening and texture improvement without irritation even for sensitive skin. 

What makes COSRX Advanced The Vitamin C 23 Serum different from other Korean Vitamin C serums? COSRX Advanced The Vitamin C 23 Serum is formulated with a powerful antioxidant network featuring 23% pure Vitamin C, Super Vitamin E (Tocotrienol), and Glutathione. Based on research, this blend helps stabilise inherently unstable pure Vitamin C, allowing it to be delivered gently and effectively to the skin, making it more comfortable to use compared to many traditional Vitamin C serums.

It has layers of oil + serum and leaves a smooth finish. The formula is non-comedogenic and works gently on all skin types. The dual-layer structure combines antioxidant power with soothing hydration from Panthenol and Allantoin, helping repair the skin barrier while minimising redness or stinging.

Perfect for those already familiar with Vitamin C who want upgrade to a high potency formula for faster and more visible results.

It has a strange smell. Is this normal? This serum does not contain fragrances. However, the vitamin C, by nature, has a certain smell that does not affect the potency of the product.

With COSRX's advanced technology, it uses a specialised packaging that keeps vitamin C fresher: 1) Special Cap that controls gas released during vitamin C filling, 2) Special Container that prevents oxidation by blocking light, heat, and external air from entering, and 3) a Dropper that is indivually packaged for a more hygienic use.

Please see link for FAQs about the CORSRX Vitamin C 23 Serum here.

HOW TO USE

1. After cleansing and toning, apply 2–3 drops to the entire face.
2. Replace the cap with the provided dropper after opening, shake lightly, and apply a few drops to clean, toned skin. 
3. Pat gently for better absorption.
4. Follow with moisturiser and SPF during the day.
Avoid mixing with retinol or acids in the same routine.
5. Requires care (storage, usage) due to high potency. Keep the serum refrigerated between 3–10°C to maintain freshness. (see product photos on precautions on how to handle and store vitamin C products).

INGREDIENTS

Star ingredients: Pure Vitamin C 23%, Super Vitamin E, Glutathione, Adenosine, Niacinamide(B3), Allantoin, Panthenol(B5), Hyaluronic Acid

Full list of ingredients: Water, Ascorbic Acid(23%), Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ascorbyl Ether, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus (Sunflower) Seed Oil, Glycyrrhiza Glabra (Licorice) Root Extract, Methyl Trimethicone, Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene

[NOTE: Ingredients are subject to change at manufacturer's discretion. For the most complete and up-to-date list of ingredients, please consult the product packaging or contact us for a photo of the product packaging.]

SPECIFICATIONS

 
CAUTION

1. For external use only.
2. Use only as directed.
3. Avoid contact with eyes. If contact occurs, rinse eyes thoroughly.
4. If swallowed, get medical help or contact the Poison Control Center immediately.
5. Do not use on wounds, rashes, broken or damaged skin.
6. Discontinue use if redness or irritation occurs and consult a physician if needed.
7. Protect the product from excess heat or direct sunlight.
8. Do not store at high temperatures.
9. KEEP OUT OF REACH OF CHILDREN.