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.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Cosrx The Vitamin C 13 serum 20 ML

Product ID: 538463295

Details

Product benefits
Brightening
Scent
Unscented
Skin type
Dry Sensitive
Special ingredients
vitamin_c
Use for
Skin

⏳Double-layer oil structure for freshness

🔬13% pure Vitamin C concentration

🛡️Hypoallergenic & stabilized formula

R$351

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

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Description

✨ Glow Up Your Skin Game with Science-Backed Vitamin C! 🍊

RADIANCE BOOSTER - Fades acne scars and brightens dull skin with potent 13% Vitamin C.
COMPACT POWERHOUSE - 20ml size perfect for daily use, fitting seamlessly into your skincare routine.
FRESHNESS LOCKED IN - Innovative double-layer oil barrier delays oxidation, preserving serum potency.
GENTLE YET POWERFUL - Hypoallergenic formula designed to minimize irritation without compromising efficacy.
EVEN TONE EVERY DAY - Effectively prevents melanin synthesis to reduce hyperpigmentation and uneven skin tone.

Cosrx The Vitamin C 13 Serum is a 20ml powerhouse featuring a highly concentrated 13% pure vitamin C formula designed to fade acne scars, brighten dull and uneven skin tones, and prevent hyperpigmentation. Its hypoallergenic, stabilized double-layer oil structure ensures maximum freshness and minimal irritation, making it a must-have for radiant, healthy skin.

Reviews

User

I love it

Perfect

4.04.2026

User

I love this product…leaves your skin feeling plump

Good purchase

2.05.2025

User

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

Okayish

13.02.2025

User

Good product

Good packageFast delivery.Original product ✨️

15.06.2024

User

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

User

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

User

Effectiveness

This is my 2nd purchase. I really like this brand.

15.07.2026

User

Best vitamin C serum

My go to vitamin c serum I love the effectiveness and how gentle it is on my skin. Unlike other vitamin C serums, this one doesn't irritate or cause breakouts. It provides amazing value for money and keeps my face feeling moisturized and smooth all day.

11.07.2026

User

Good quality.

Super effective☺️

10.07.2026

User

Great

Great product as my friend she is make up artist recommended

27.01.2025

User

Nice and best, love this

I love this serum 💜💜I am so happy to see the results, my skin love this, best serum for oily skin and the best part is their no scent, value for many, my skin softness now, my acne pore skin now glowing, love this forever

15.12.2024

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

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Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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R$351

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Asin	B0BS8M8Q5L
Best Sellers Rank	#641 in Facial Day Care
Date First Available	23 June 2023
Item Model Number	SC40TR06
Manufacturer	COSRX
Product Dimensions	4.2 x 6.3 x 10.2 cm; 20 g

Cosrx The Vitamin C 13 serum 20 ML

Details

Details

Description

Specifications

Reviews

Common Questions