Description
The COSRX The Vitamin C 23 Serum 20ml is a highly concentrated brightening serum formulated with 23% pure Vitamin C to visibly improve the look of acne scars, dark spots and uneven tone. Enriched with Vitamin E, Hyaluronic Acid and soothing Allantoin, it helps revitalise dull, dry skin while supporting a smoother, more radiant complexion. This lightweight serum is ideal for those already familiar with Vitamin C care and looking for intensive brightening and skin-tone improvement.
Key Features
- High-strength serum with 23% pure Vitamin C (Ascorbic Acid) for targeted brightening care.
- Helps fade the appearance of acne scars, dark spots and discoloration for a more even tone.
- Supports the look of fine lines and skin texture for a smoother, more refined complexion.
- Contains Vitamin E (Tocotrienols, Tocopherol) and Glutathione to support antioxidant care.
- Hyaluronic Acid, Panthenol and Allantoin help hydrate and soothe dry, stressed skin.
- Squalane, Niacinamide and Licorice Root Extract support a brighter, healthier-looking skin barrier.
- Dropper-type packaging makes it easy to dispense a precise amount of serum.
- Can be used in the morning and/or evening as part of a daily skincare routine when paired with sunscreen during the day.
How to Use
- After cleansing and toning, during the serum step, gently shake the bottle once or twice from side to side.
- Apply a few drops of COSRX The Vitamin C 23 Serum to the skin.
- Use fingertips to gently massage, starting from the center of the face and working outward.
- Store the serum in the refrigerator to help prevent oxidation.
- Before first use, remove the original cap and attach the enclosed dropper.
- This highly concentrated Vitamin C serum can be used in the morning and/or evening.
- If using in the morning, finish with a broad-spectrum sunscreen with SPF 30 or higher.
- A patch test is recommended before applying to the entire face, especially for sensitive skin.
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.
Specifications
| Product Type | Vitamin C facial serum |
|---|---|
| Brand | COSRX |
| Volume | 20 ml |
| Key Concentration | 23% pure Vitamin C (Ascorbic Acid) |
| Country of Origin | South Korea |
| Recommended For | Those concerned about acne scars, dark spots, uneven skin tone and dull, dry skin |
Cautions
- For external use only.
- Avoid contact with eyes.
- Do not apply to broken or inflamed skin.
- Keep out of reach of children.
- Use with care on easily irritated skin; a patch test on a small area is recommended.
- Discontinue use if signs of irritation or rash appear.
- Store in a cool, dry place away from direct sunlight, and keep the bottle tightly closed.
- When opening the cap, a fizzing sound may occur due to the specially designed cap that helps keep Vitamin C sealed.
Wren – Denver, USA –
I’ve used the COSRX Vitamin C serum for a few weeks. It has helped lighten my acne scars. The texture is lightweight and absorbs fast. My only issue was that it had a slightly strange smell at first, but I got used to it. Overall, I’m happy with how it’s working.
Astrid from Rome, Italy –
Ho provato il siero COSRX Vitamin C e sono rimasta sbalordita dai risultati! Le cicatrici delle mie imperfezioni sembrano svanire come per magia, un vero incanto. Inoltre, l’odore è davvero fresco; ti sembra di avere direttamente frutta sulla pelle. La consistenza non lascia alcuna sensazione appiccicosa che a volte i prodotti possono portare con sé – super leggero! Da quando lo uso nella mia routine mattutina qui in Piazza Navona, la luminosità del mio viso ha avuto un bello slancio proprio nei momenti più freddi dell’anno. Un must-have!
Tatiana from Moscow, Russia –
Три слова: чистота, яркость и забота. Эта сыворотка абсолютно изменила мой утренний ритуал. Экспериментировал почти две недели с витамином С – стало легче увидеть себя в зеркале.
Ingrid from Copenhagen, Denmark –
Utilizzando il siero COSRX The Vitamin C 23 per una settimana, ho notato un chiaro miglioramento. La mia pelle era opaca dopo l’inverno, ma ora brilla e le piccole cicatrici stanno svanendo. Adoro la texture leggera; assorbe velocemente senza lasciare residui appiccicosi. Mi fa sentire davvero fresca!
Vladimir from Chicago, USA –
Recently, I’ve incorporated COSRX The Vitamin C 23 Serum into my routine here in vibrant Chicago. Let me tell you—this serum packs a punch! With its striking concentration of Ascorbic Acid, the effects have been transformational; the past few weeks left visible fading on those stubborn acne marks that haunt many urban dwellers like myself. This isn’t just another fancy bottle cluttering your shelf—the combination of Hydrating ingredients such as Sodium Hyaluronate and Allantoin renders it quite luxurious against this chilly Midwestern climate. Brightening results accompany intense hydration: trust me when I say coffee can no longer wake up tired skin; only this exquisite formula does it so gracefully.
Nguyễn Hòa from Hanoi, Vietnam –
Nguyên điệu làn da của mình tràn đầy sức sống sau khi dùng Serum Vitamin C. Nguy cơ tăng sắc tố đang tan biến nhanh chóng, điều kỳ diệu!
Koa from Rio de Janeiro, Brasil –
Galera, esse sérum de vitamina C da COSRX tá simplesmente arrasando! 🥳 Comecei a usar faz umas semanas e minha pele nunca esteve tão radiante. Ele é super levinho e não deixa aquele aspecto oleoso que outros produtos deixam, sabe? O cheiro é bem suave também – tipo uma lufada fresquinha em casa! Além disso, notei as manchas do rosto clareando e minha autoestima só subindo depois desse glow todo. Então se você curte cuidados com a pele sem muito complicar o dia-a-dia… Mermão ou irmã das américas 😀!!! Corre lá pra garantir!
Leila from Cairo, Egypt –
As an aspiring herbalist in Cairo, the luminous effect of COSRX’s Vitamin C serum truly revived my evening rituals. With fine lines visibly softened, each drop imbues moisture while harmonizing blemishes seamlessly.
Kwame from New York, USA –
At first glance, I approached COSRX’s The Vitamin C 23 Serum with some doubt. Another serum promising clear skin seemed like just another hype in the beauty jungle of New York City. However, after a week’s consistent application—my reservations began to dissipate! This powerhouse blend genuinely lightened my post-acne scars and provided a healthy radiance that often feels elusive in our busy lives here. With ingredients like Hyaluronic Acid alongside potent Vitamin C for hydration—it convinced me this is more than marketing; it’s artistry combined with science fostering natural brilliance.