The Vitamin C 23 Serum

4.1 (3,656)
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Product details

Web ID: 16842543
Hypoallergenic 23% pure vitamin C!

  • Product Features

    • WHAT IT IS:
    • An antioxidant brightening booster with high performance
    • WHAT IT DOES:
    • Fades acne scars and hyperpigmentation; brightens dull skin; firms and plumps; diminishes fine lines and wrinkles; targets dull skin, uneven skin tone, dark spots and hyperpigmentation
    • INGREDIENT HIGHLIGHTS:
    • 23% pure vitamin C (ascorbic acid) is an antioxidant that brightens (improves blemishes and brighten skin), reduces wrinkles and enhances elasticity
    • Super vitamin E (tocotrienol), which features 50 times higher antioxidant activities than tocopherol, stimulates collagen production
    • Hyaluronic acid has strong moisture-retention properties to help maintain hydration
    • Allantoin helps soothe and relieve irritation
    • HOW TO USE:
    • After cleansing, during the serum phase, shake the bottle lightly once or twice from side to side, then apply a few drops to the skin; use fingertips to gently massage and absorb the serum, starting from the inside of the face working toward the edges
    • This serum can be used in the morning and/or afternoon; if applied in the morning, be sure to use with an SPF of 30 or higher
    • For the first use, attach the enclosed dropper in the product package
    • Use within 2 months of opening, due to active ingredient protection
    • Store upright in refrigerator once opened
    • RESULTS:
    • In 4 weeks:
    • 16.26% improvement of pigmentation (visible melasma and blemishes)*
    • 32.89% improvement of triple-complexion skin tone (red skin tone)*
    • 32.36% effect of brightening (skin radiance)*
    • 16.36% improvement of elasticity (internal elasticity)*
    • 38.65% improvement of the pore (volume)*
    • 27.18% improvement of the pore (count)*
    • *Based on clinical trials of 20 subjects; Dermacosmetic Skin Science Laboratory Co., Ltd.

  • Shipping & Returns

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Ratings & Reviews

Here's what customers think
  • The serum is described as lightweight, hydrating, and absorbing quickly into the skin.
  • Many reviewers noted that it helped brighten their skin, fade dark spots and hyperpigmentation, and improve the overall appearance and texture of their skin.
  • However, a common complaint is the strong, unpleasant smell that many found off-putting, though some mentioned the smell dissipates quickly.
  • Some users also found the serum to be a bit sticky or tacky upon application.
  • A few sensitive-skinned customers reported experiencing irritation or breakouts from using the serum.
AI-generated summary from 3,648 customers reviews.
4.1/5

3,656 star ratings, 3,648 reviews

Write a Review
47.9% of reviews have 5 stars
1753
27.4% of reviews have 4 stars
1000
14.7% of reviews have 3 stars
539
5.9% of reviews have 2 stars
214
4.1% of reviews have 1 star
150

On average, customers rate the Oil-absorbing/moisturizing of this item as Neutral.

On average, customers rate the Heavy/light of this item as Neutral.

On average, customers rate the Best for day/best for night of this item as Day or night.

488 customer images

3,648 reviews
Jacqueline D.
7 days ago
Incentivized review

Excellent Product

I have been using this Advanced Vitamin C 23 Serum for over a month and I really like this product. It has a light scent, which is pleasant and not over-bearing. The serum dries quickly on my face and works well with all my other products in my routine. I will definitely continue using this product! Thank you!

Customer review from cosrx

Nicole G.
7 days ago
Incentivized review

I noticed a difference in

I noticed a difference in my complexion, pores and texture of my skin almost immediately. Scarring had decreased as consistent use has gone on

Customer review from cosrx

Elizabeth P.
27 days ago
Incentivized review

Excellent serum! Goes on soft

Excellent serum! Goes on soft and doesn’t stay greasy. Gives me skin the soft glow it needs.

Customer review from cosrx

Eva E.
30 days ago
Incentivized review

Vitamin E is the grail

Vitamin E is the grail of quality I was looking for. Love it

Customer review from cosrx

Amanda H.
1 month ago
Incentivized review

This is a staple in

This is a staple in my morning routine. I love it.

Customer review from cosrx

Alex D.
2 months ago
Incentivized review

I love this product! It

I love this product! It made my face feel incredibly smooth.

Customer review from cosrx

Kelsey R.
2 months ago
Incentivized review

great ingredients and seen some

great ingredients and seen some tests online that shows its effectiveness

Customer review from cosrx

Katie B.
2 months ago
Incentivized review

Love this serum so much!

Love this serum so much! I’ve been using it for a few months and have definitely seen improvements in my skin tone

Customer review from cosrx