• COSRX The Vitamin C 23 serum 20ml — product photo
  • COSRX The Vitamin C 23 serum 20ml — product detail image 2
  • COSRX The Vitamin C 23 serum 20ml — product detail image 3
  • COSRX The Vitamin C 23 serum 20ml — product detail image 4
  • COSRX The Vitamin C 23 serum 20ml — product detail image 5
  • COSRX The Vitamin C 23 serum 20ml — product detail image 6
  • COSRX The Vitamin C 23 serum 20ml — product detail image 7
  • COSRX The Vitamin C 23 serum 20ml — product detail image 8
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Cosrx The Vitamin C 23 serum 20ml

€23,99
€23,99
Tax included. Shipping calculated at checkout.
SIZE
    Description

    What it is

    Cosrx The Vitamin C 23 serum 20ml is a COSRX Korean serum or essence for a product-specific daily skincare routine.

    Why you'll love it

    • Adds a focused COSRX skincare step after cleansing
    • Highlights vitamin C in the labeled formula
    • The serum or essence format layers into a simple Korean skincare routine

    Key ingredients

    23% Pure Vitamin C (Ascorbic acid), Super Vitamin E (Tocotrienol), Hyaluronic Acid, Allantoin.

    How to use

    Apply an appropriate amount after cleansing and lighter skincare steps, then gently pat until absorbed. Follow the package directions and use sunscreen during the day where appropriate.

    Who it's for

    Customers exploring COSRX Korean skincare for the product's labeled concern and texture.

    Product FAQ

    How should I use Cosrx The Vitamin C 23 serum 20ml?

    Apply an appropriate amount after cleansing and lighter skincare steps, then gently pat until absorbed. Follow the package directions and use sunscreen during the day where appropriate.

    Where can I find the complete ingredients?

    See the product package and the official COSRX product page for the current complete ingredient list; formulas may change by market.

    K-beauty skin profile

    K-beauty skin profile

    COSRX serum}} for Blemishes, Dark spots, Dehydration, Dullness, Fine lines.

    Product type
    COSRX serum
    Routine step
    AM + PM
    Skin type
    Oily, Dry, Combination, Normal, Sensitive
    Skin concerns
    Blemishes, Dark spots, Dehydration, Dullness, Fine lines
    Key ingredients
    Hyaluronic acid, Vitamin C
    Texture
    Serum
    Use frequency
    Daily
    Highlights
    Fades acne scars, Brightens dull skin, Firms and plumps
    Fragrance free
    Yes
    Alcohol free
    Yes
    Details

    Cosrx The Vitamin C 23 serum 20ml is a COSRX Korean serum or essence for a product-specific daily skincare routine. Adds a focused COSRX skincare step after cleansing Highlights vitamin C in the labeled formula The serum or essence format layers into a simple Korean skincare routine
    How to use

    Apply an appropriate amount after cleansing and lighter skincare steps, then gently pat until absorbed. Follow the package directions and use sunscreen during the day where appropriate.
    Ingredients

    23% Pure Vitamin C (Ascorbic acid), Super Vitamin E (Tocotrienol), Hyaluronic Acid, Allantoin.

    Shipping, returns & support
    • Authentic K-beauty Genuine products sourced through trusted distributors.
    • Clear delivery timing US delivery: 7 to 10 business days. Shipping is $20 below $50, $10 from $50 to $84.99, and free from $85.
    • 14-day return window Eligibility and item-condition rules apply.
    • US customer support Questions about a product, order, or routine? Email us at contact@dewberrykorea.com.
    • Secure checkout Payments are processed securely through Shopify checkout.
    COSRX The Vitamin C 23 serum 20ml — product photo
    COSRX The Vitamin C 23 serum 20ml — product detail image 2
    COSRX The Vitamin C 23 serum 20ml — product detail image 3
    COSRX The Vitamin C 23 serum 20ml — product detail image 4
    COSRX The Vitamin C 23 serum 20ml — product detail image 5
    COSRX The Vitamin C 23 serum 20ml — product detail image 6
    COSRX The Vitamin C 23 serum 20ml — product detail image 7
    COSRX The Vitamin C 23 serum 20ml — product detail image 8
    • 5 stars: 81 (66%)
    • 4 stars: 21 (17%)
    • 3 stars: 9 (7%)
    • 2 stars: 4 (3%)
    • 1 star: 8 (7%)
    A
    Aurora J.
    Satisfied

    This vitamin C works just as well as others I have tried -I"m pleased.

    E
    Erica-Mae B.
    Sensitive skin

    I cant says anything about the product voz im allergy into it

    K
    Katherine-Joy B.

    The Vitamin C 23 serum

    K
    Karina-Belle Z.

    like the texture

    A
    Alex B.
    Vitamin C , the best for your skin

    I think it is a fine product I use Vit C for years and this one seems to be very concentrated

    P
    Parker Z.
    Vitamin C serum

    I use vitamin C on a daily base during summer, it feels comfortable on my skin, but need more time to see the results

    E
    Ella-Mae C.
    Excellent

    Excellent serum

    H
    Hailey-Rose B.

    The Vitamin C 23 serum

    E
    Ella F.
    In my 3rd bottle

    helps with lightening pimple scars on my face but I don't it brightened my face though. but I like it anyways.

    M
    Molly-Belle B.
    solid product

    very good, smooth and not greasy

    E
    Eliana-Louise A.

    The Vitamin C 23 serum

    H
    Hannah-Grace A.
    Very good

    Very good product. I use only two week and start showing result.

    P
    Peyton L.
    Love it!

    My favorite vitamin c

    Y
    Yasmina-Grace B.

    The Vitamin C 23 serum

    E
    Emily I.
    Good feeling

    I just started to use it a few weeks ago but I already see first results!

    S
    Sabrina-Belle B.
    Good

    I can't see much different but a combination with the night serum, my skin is healthier

    A
    Alina-Rose Z.
    👍🏻👍🏻👍🏻

    👍🏻👍🏻👍🏻

    C
    Carla-Louise B.

    The Vitamin C 23 serum

    M
    Marina-Grace Z.
    Weird smell

    I can see the improve in my skin, is a good serum but have a stronge smell like chicken broth 😂

    Z
    Zara-Joy Z.
    Perfect

    Perfect

    C
    Claudia J.
    Bad smell

    Bad smell

    V
    Valentina-Mae B.
    Incredible product

    It has made a vast different on old acne scarring I have. Gives such a glow too. So good!!

    N
    Nicole-Louise B.

    The Vitamin C 23 serum

    B
    Brianna-Grace Z.
    love it- helps with my hyperpigmentation

    I have been using this product for a year and it really helps with my dark spots

    L
    Luna-Joy Z.

    The Vitamin C 23 serum

    L
    Lena-Rose Z.
    bad smell

    Dont like the smell

    S
    Serena-Belle Z.
    Super

    Super product!

    A
    Alex B.

    O loved it, my skin look so good after start use it

    S
    Serena-Rose B.
    Skin is looking better

    I’ve been using this product for a few weeks now and I’m really impressed with the results. My skin used to appear dull, but since I started using this serum, I’ve noticed a visible improvement.

    A
    Anika-Rose B.
    One of the best

    Feels a bit oily but sinks in the skin very quickly. Perfect for combination skin. Best kept in the fridge, which is the only downside to this product.

    M
    Megan-Mae B.

    Very good

    D
    Dakota P.
    Great for dry skin

    Great for dry skin. skin gets better. more glowy

    T
    Tatyana-Mae A.

    Love it

    A
    Annabelle-Louise Z.

    Love it! Feels nourishing on my skin.

    M
    Mariana-Grace B.
    Good

    It makes a difference because my skin looks more healthy and glowy, but I can’t see something about my hyperpigmentation

    Authentic Korean beauty, selected for real routines

    Dewberry Korea curates authentic K-beauty products with visible product details, routine guidance, and clear availability.

    Why Dewberry Korea?

    • Authentic K-Beauty

      100% genuine Korean skincare sourced from trusted distributors.

    • US Delivery

      US delivery is typically 7 to 10 business days. Standard shipping is $20 below $50, $10 from $50 to $84.99, and free from $85. Carrier conditions and destination can affect exact dates.

    • Clear Product Guidance

      Ingredients, directions, skin concerns, and routine details are shown when available.

    • Trusted Retailer

      Clear availability, pricing, and product information before checkout.