COSRX – The Vitamin C 23 Serum | Brightening, Anti-Aging

Original price was: 30.00 €.Current price is: 28.95 €.

(6 customer reviews)

Spend €50+: Enjoy 10% off + a Free Face Mask
on your FIRST PURCHASE! Use code: GIFT

Buy COSRX Vitamin C 23 Serum to brighten, firm, and hydrate your skin! With 23% pure Vitamin C, tocotrienol, and hyaluronic acid, this lightweight serum fades dark spots, boosts radiance, and smooths fine lines. Ideal for all skin types, it’s your essential step for a glowing, youthful complexion.

Size

20ml

1 in stock

Purchase & earn 87 points!

Buy COSRX Vitamin C 23 Serum for a transformative skincare boost that brings dull skin back to life. This high-potency serum features a 23% concentration of pure Vitamin C (L-ascorbic acid) that works to fade dark spots, even out skin tone, and shield against environmental damage. Enriched with hyaluronic acid and allantoin for deep hydration, this lightweight formula provides intense antioxidant protection while encouraging a bright, radiant complexion.

The COSRX Vitamin C 23 Serum is more than a brightening agent; it’s packed with age-defying ingredients like tocotrienol (Vitamin E) and caffeine to enhance skin elasticity and combat signs of aging. Together, these ingredients help firm the skin, reduce the appearance of fine lines, and maintain moisture, leaving your face fresh, plump, and smooth. Suitable for all skin types, this serum’s gentle yet effective formula absorbs quickly and integrates easily into daily routines.

Benefits:

  • Brightens and Evens Skin Tone: High concentration of Vitamin C visibly fades dark spots and boosts radiance.
  • Firms and Plumps: Tocotrienol and caffeine work together to firm the skin, improving elasticity and minimizing wrinkles.
  • Deep Hydration: Hyaluronic acid and allantoin keep skin deeply moisturized, ensuring comfort without irritation.
  • Antioxidant Protection: Defends against environmental damage and free radicals that can accelerate aging.
  • Smooth, Lightweight Texture: Absorbs effortlessly, leaving skin refreshed and non-greasy.

Key Ingredients:

  • L-ascorbic Acid (Vitamin C): Brightens, fades pigmentation, and stimulates collagen production for youthful skin.
  • Tocotrienol (Vitamin E): Powerful antioxidant that enhances Vitamin C’s effectiveness and fights signs of aging.
  • Hyaluronic Acid: Delivers moisture deep into the skin for lasting hydration and plumpness.
  • Caffeine: Stimulates circulation, helping to reduce puffiness and revitalize tired-looking skin.

How to Use:

After cleansing and toning, gently shake the bottle and apply 2-3 drops of COSRX Vitamin C 23 Serum onto your face. Massage lightly, allowing it to absorb fully. For morning use, follow with sunscreen to protect against sensitivity. Gradually increase use from a few times a week to daily for best results. Store in the fridge to maintain freshness.

What our customers say: Verified buyers appreciate the performance, feel, and brightness of the skin serum. They mention it works great, leaves their skin smooth, and helps brighten dark spots. Many are pleased with its overall quality and effectiveness.

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

Weight 0.125 kg
Application

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

Area of Application

Awards

Different awards winner

Benefits

,

,

,

,

,

,

,

Brand

Certifications

Dermatologically tested

Clean Beauty

Clean Beauty

,

Cruelty-Free

,

Vegan

Color

Yellow

Concerns

,

,

,

Fragrance/Scent

No Artificial Fragrance

Frequency

1 time/day

Gender

Men

,

Unisex

,

Women

Ideal for Skin Type

Combination Skin

,

Dry Skin

,

Mature Skin

,

Normal Skin

Key Ingredients

,

,

,

,

Packaging

Eco-Friendly

,

Travel Size

Place of Origin

Routine Steps

Size

20ml

Suitable for Skin Type

Acne-Prone Skin

,

Blemished Skin

,

Combination Skin

,

Damaged Skin

,

Dehydrated Skin

,

Dry Skin

,

Dull Skin

,

Mature Skin

,

Normal Skin

,

Oily Skin

,

Pigmentation Skin

,

Redness-Prone Skin

,

Sensitive Skin

Type Product

Usage Time

Day or Night

4.8
6 reviews
5
1
0
0
0

6 reviews for COSRX – The Vitamin C 23 Serum | Brightening, Anti-Aging

Clear filters
  1. Ivana Todorova

    This high-concentration Vitamin C serum is fantastic! My skin tone is visibly brighter, and my dark spots are fading faster than expected. It absorbs well, but I recommend using it with a good moisturizer to prevent dryness.

  2. Magdalena Hofmann

    This Vitamin C serum is strong, so I use it only every other day. My skin is definitely glowing, but it caused a bit of dryness at first. Sunscreen is a must!

  3. Annika Nyberg

    This serum makes my skin look so fresh! After just two weeks, my dull complexion looks more even, and my fine lines are less noticeable.

  4. Elżbieta Matusiak

    A powerful Vitamin C serum that delivers results! My skin is more even-toned, and my hyperpigmentation has faded noticeably. It’s worth every penny!

  5. Despina Papanastasiou

    My skin feels brighter and more even after just a few weeks of use. It absorbs quickly without leaving a sticky feeling, which is great for daily use. I noticed a reduction in dark spots, and my complexion looks healthier overall. The only downside is that it can feel slightly drying if not followed with a good moisturizer. However, the results are worth it, and I appreciate how lightweight it feels on my skin. Perfect for achieving a natural glow.

  6. Lily Evans

    After using it for a few weeks, my skin feels smoother and looks brighter. The texture is lightweight, so it absorbs quickly without leaving any greasiness. I noticed fewer dark spots, and my complexion appears more even. However, it took a little time to get used to the scent, which is mild but noticeable. A dropper would make application easier than pouring it out. Overall, it’s effective for daily use and worth trying if you want glowing skin.

  7. Your review is awaiting approval

    After using it for a month, my skin feels smoother and looks brighter. The texture is lightweight, so it absorbs quickly without leaving any greasiness. I noticed fewer dark spots, and my complexion appears more even. The only downside is the price, which might be steep for some, but the results make it worth considering. It also pairs well with other skincare products, enhancing their effectiveness. A little goes a long way, so the bottle lasts longer than expected.

  8. Your review is awaiting approval

    After using it for a few weeks, my skin feels smoother and looks brighter. The texture blends well without feeling sticky, and dark spots have visibly faded. It’s lightweight but needs a bit more time to absorb fully. My complexion feels healthier, though sensitive areas felt a slight tingle at first. Noticed an improvement in hydration and evenness after consistent use. A reliable addition to my skincare routine that delivers noticeable results.

Only logged in customers who have purchased this product may leave a review.

Shipping Information:
  • Delivery Schedule: KoreanCosmetics.cy delivers packages quickly and safely six days a week from our warehouse in Cyprus. We ship from Monday to Saturday, with most packages dispatched the same or next day.
  • Courier Service: We use ACS Courier for deliveries to all cities in Cyprus (Nicosia, Larnaca, Limassol, Famagusta, and Paphos). When placing an order, you can choose delivery to your home/office or opt to collect your order from any ACS Courier location in Cyprus.
  • Shipping Costs: Shipping is free for orders over €50. For orders below €50, there is a shipping fee of €3.50.
  • Delivery Times: Collecting from an ACS Courier location typically takes 1 to 1.5 days if shipped in the morning. Home/office delivery usually takes 1-2 days. The courier will call the provided phone number 10-15 minutes before delivery to arrange a suitable time.
  • Holiday Season: Please note that there might be delays by ACS Courier during the holiday season.
Returns Policy:
  • Return Window: Returns are accepted within 14 days of receipt.
  • Conditions: Products must be unopened, unused, and in their original, undamaged packaging.
  • Return Shipping Costs: The customer is responsible for the cost of returning the product and the cost of shipping a replacement product.
  • Refunds and Exchanges: We do not offer refunds for returns or change of mind. Customers can exchange the returned product for another product of equal or lesser value within 14 days.
Product Design and Packaging:

Please note that some brands may change their product or packaging design without prior notice. We strive to keep the product photos on our website updated, but there may be instances where new stock has a (slightly) different design than shown. If a brand changes a product's design, we may not be aware of it until we receive the new stock.

Ingredients:

We make every effort to keep our website updated with the latest product ingredients. However, brands can change their product ingredients without any notice. For the most current ingredient list, please refer to the product packaging or contact us for a product photo.

SKU: 8809598454651 Category:

BUILD YOUR ROUTINE

BEST SELLING PRODUCTS

ROUND LAB – 1025 Dokdo Sunscreen SPF 50+ | UV Defense

Original price was: 32.95 €.Current price is: 27.95 €.

ANUA – Heartleaf 70 Daily Lotion | Anti-Redness, Hydrating

Original price was: 28.00 €.Current price is: 26.50 €.

Round Lab – Birch Juice Moisturizing Sun Cream SPF50+ PA++++

Original price was: 24.50 €.Current price is: 22.95 €.

COSRX – Advanced Snail 96 Mucin Power Essence | Skin Repair

Original price was: 25.00 €.Current price is: 19.95 €.