How do I use this product?

This Serum consists of highly concentrated Pure Vitamin C (Ascorbic Acid)- a patch test on the body is recommended before using on the face. Store in the fridge to prevent oxidation.

Why does the serum smell bad?

Pure Vitamin C (Ascorbic Acid) naturally has a coppery scent. In order to keep our product as natural as possible, The Vitamin C 13 Serum is formulated without artificial fragrances.

Can this be used on sensitive skin?

Based on a Primary Dermal Irritation Study (on 30 subjects for 24 hours) the “The Vitamin C 13 Serum” is found to be a non-irritant product that causes no irritation for sensitive skin. *Perform a patch test on the body before using on the face.

How do I know if this product is authentic?

To ensure the authenticity of the product, please make sure you are purchasing the product from COSRX Inc. The authenticity of the product cannot be promised when purchased from sellers other than COSRX Inc.

Cosrx The Vitamin C 13 Serum 20 Ml

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 35.59

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Unlock your skin’s glow-up with science-backed Vitamin C! 🔥

SCAR SLAYER - Clinically proven to visibly fade acne scars and hyperpigmentation with consistent use.
VITAMIN BOOST - Enriched with Vitamin E and hyaluronic acid to hydrate, protect, and smooth wrinkles.
FRESHNESS LOCKED - Innovative double-layer oil barrier preserves potency and delays oxidation for maximum efficacy.
GENTLE YET POTENT - Hypoallergenic, soap-free formula perfect for sensitive and dry skin without irritation.
RADIANCE RELOADED - Powerful 13% pure Vitamin C targets dullness and uneven tone for a luminous glow.

COSRX The Vitamin C 13 Serum is a 20ml powerhouse featuring a 13% pure ascorbic acid concentration in a unique double-layer oil formula that preserves freshness and potency. Designed to brighten skin, fade acne scars, and even out tone, this hypoallergenic serum is enriched with Vitamin E and hyaluronic acid to hydrate and protect sensitive skin types. A top-rated, dermatologist-loved solution for radiant, youthful skin.

Specifications

ASIN	B0BS8M8Q5L
Active Ingredients	ascorbic acid,vitamin c,vitamin e
Best Sellers Rank	#15,775 in Beauty ( See Top 100 in Beauty ) #457 in Facial Day Care
Brand	COSRX
Brand Name	COSRX
Customer Reviews	4.3 out of 5 stars 2,111 Reviews
Global Trade Identification Number	08809598455238
Item Form	Oil
Item Volume	20 Milliliters
Item Weight	20 Grams
Manufacturer	COSRX
Manufacturer Part Number	SC40TR06
Material Features	Antioxidant
Material Type Free	soap free
Model Number	SC40TR06
Number of Items	1
Product Benefits	Brightening
Product benefits	Brightening
Recommended Uses For Product	Brightening,Hydrating,Provides Vitamins,Wrinkles
Scent	Unscented
Scent Name	Unscented
Skin Tone	All
Skin Type	Dry, Sensitive
Skin type	Dry, Sensitive
Special Ingredients	hyaluronic_acid, vitamin_c, vitamin_e
Special ingredients	hyaluronic_acid, vitamin_c, vitamin_e
Target Use Body Part	Skin
Unit Count	20 Milliliters
Use for	Skin

Reviews

M**I

I love it

Perfect

4.04.2026

M**M

I love this product…leaves your skin feeling plump

Good purchase

2.05.2025

A**A

Smells like chemical and it comes in yellow colour is it oxidised??

Okayish

13.02.2025

A**Q

Good product

Good package Fast delivery. Original product ✨️

15.06.2024

I**H

Half Empty bottle and too Oxidised product

Half Empty bottle and too Oxidised product The product was half missing moreover too oxidised...

3.08.2025

S**H

Water texture absorbs quickly, no stick

Love this. I've had a few different vitiman C and they have been thicker consistency that leave the face shiny and sticky. This is a water consistency and absorbs nicely to the skin. It leaves it with a little shine but I like it. Nothing crazy like the others I've tried. Doesn't leave the face sticky.

15.07.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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