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COSRX - The Vitamin C 23 Serum
AI-synthesized

COSRX - The Vitamin C 23 Serum reviews

4.7on 115 analyzed reviews

COSRXSoins du visage

At a glance

COSRX - The Vitamin C 23 Serum reviews: 4.7/5 based on 115 analyzed reviews from 3 sites, updated October 27, 2026.

Praised: scent and sensation / usage. Criticized: peculiar scent and sensitivity and storage.

  • Scent: 25 reviews mention it, mostly positively
  • Sensation / Usage: 11 reviews mention it, mostly positively
  • Formula / Texture: 9 reviews mention it, mostly positively

Review summary

Written by Augur from the 115 reviews analyzed

This concentrated vitamin C serum is highly praised for its effectiveness in brightening the complexion, reducing pigmentation, and its hydrating effect. Its texture spreads easily and absorbs well into the skin, offering a radiant finish that is highly appreciated by users.

What buyers talk about most

  • Strength : Glow and radianceIt provides a visible luminous effect and helps fade pigmentation spots with regular use.
  • Strength : Pleasant textureIts fluid texture applies and absorbs easily without leaving a heavy film.
  • Strength : Excellent value for moneyUsers highlight its effectiveness, which is comparable to much more expensive high-end products.
  • Weakness : Peculiar scentThe product emits a strong and unique initial odor, which fortunately fades after application.
  • Weakness : Sensitivity and storageIts powerful formula can tingle sensitive skin and requires mandatory storage in the refrigerator.

Reviews behind this summary

Isabelpoizen10/02/2025

Siero con alta percentuale di vitamina C, sulla mia pelle pizzica un pochino dopo l’applicazione, ma è normale per il tipo di prodotto. Ha l’odore tipico di tutti i sieri con alta percentuale di vitamina C, che non a tutti piace, ma per i risultati che si ottengono, si può tranquillamente sopportare. Contiene anche acido ialuronico e vitamina E, che ha azione antiossidante. Prodotto ottimo, come tutti i prodotti coreani che non si battono.Dopo l’applicazione la pelle è subito luminosa e morbida. Ovviamente una volta aperto, si conserva in frigorifero, per evitare che gli attivi si degradino.

Nadia.e10/01/2025

Ça reste pour moi l indispensable à avoir, je ne peux plus m’en passer.Réduit les cicatrices d’acné, illumine la peau, l’acide hyaluronique fait que ça hydrate vraiment la peau.Je rachèterai sans hésitation!

Anthony Poland07/30/2025

Very good product well worth the money and very fast delivery

See the 70 published reviews

About the product

Brand, category, barcode, review sourcesShow Hide
Brand
COSRX
Barcode (EAN)
8809598454651
Reviews analyzed
115
Last updated
October 27, 2026

Reviews 70

Rating

Buyer photos (3)

Isabelpoizen10/02/2025

Siero con alta percentuale di vitamina C, sulla mia pelle pizzica un pochino dopo l’applicazione, ma è normale per il tipo di prodotto. Ha l’odore tipico di tutti i sieri con alta…

Nadia.e10/01/2025

Ça reste pour moi l indispensable à avoir, je ne peux plus m’en passer.Réduit les cicatrices d’acné, illumine la peau, l’acide hyaluronique fait que ça hydrate vraiment la peau.Je…

Harnois Dominique10/01/2025

Perfect

Yam09/24/2025

Très bon serum, efficace.

Very Beautiful09/19/2025

Beautiful

Gbenedictis09/11/2025

Very good

C**** T****09/09/2025

bonne vita c

Anthony Poland07/30/2025

Very good product well worth the money and very fast delivery

Tr07/24/2025

I’ve been using this Vitamin C serum daily in the morning, and I’m honestly impressed with the results. My skin looks noticeably brighter and more even-toned after just a couple…

Milica Sovilj07/14/2025

I have been using the COSRX Pure Vitamin C Serum with Vitamin E for a while now and I really love it. At first, I noticed it has a slightly weird smell. It is not unpleasant but…