For What? ... About Niacinamide

For What? ... About Niacinamide

Niacinamide is one of the most consistently used and preferred skincare ingredients. 
Why do skincare brands continue to use niacinamide in their products? Why do consumers seek out products with niacinamide? In this post, we'll answer these questions and know more about niacinamide. 
September 04, 2023 — cosrx inc
Yes, We love Snail Secretion

Yes, We love Snail Secretion

Do you know what ingredient is the longest and most loved in COSRX? It's snail secretion.
Why do so many people all over the world like snail secretion, regardless of skin type, environment, gender, age, etc.?

Let's find out what is the charm of snail secretion through this posting.

June 09, 2023 — cosrx inc
All about Retinol - COSRX Official

All about Retinol

Retinol has been used as a skincare ingredient  because of its excellent skin efficacy. However, it is relatively difficult to make high retinol concentration because it is unstable against ultraviolet rays and the higher the retinol content, the lower the stability. To solve this unstable problem, not only the development of various retinol derivatives but also the techniques for stabilizing retinol are constantly being studied.​
April 07, 2023 — cosrx inc
All about VITAMIN C - COSRX Official

All about VITAMIN C

Vitamin C is one of the core elements to make collagen, an essential component of our skin. And if we lack vitamin C, collagen synthesis decreases, and the skin loses elasticity.

Therefore, vitamin C is an ingredient that fills collagen, improving elasticity and wrinkles.

Just like we take vitamin supplements daily, using vitamin C products consistently is important.

February 27, 2023 — cosrx inc
All about EXFOLIATION! - COSRX Official


If you are COSRX users, you may know that exfoliation is important in skincare routine.

However, many people probably don't know the difference of the type chemical exfoliators and don't know what ingredients are contained in COSRX products.

We will introduce chemical exfoliators and recommend COSRX exfoliators for you.

January 10, 2023 — cosrx inc
Skincare FAQ: Toners? Toners! - COSRX Official

Skincare FAQ: Toners? Toners!

You’re browsing through or other online beauty shops, or just walking through the aisle at your local drugstores, and you see so many products that people call “toners.” You’ve seen it, you may already be using it, and you probably heard from many people about how it’s an “essential part of their skincare routines.” But what really is a toner and why should you use it?
October 06, 2022 — cosrx inc
You ask, we answer ! The New Derm Serum FAQs - COSRX Official

You ask, we answer ! The New Derm Serum FAQs

We would like to explain in more detail focusing what you are really curious about the prodcut.
July 04, 2022 — cosrx inc
The RX - Newly Launched DermSerums Sold out within 24 Hours - COSRX Official

The RX - Newly Launched DermSerums Sold out within 24 Hours

COSRX has announced that newly launched The RX - highly concentrated serums called ‘The Vitamin C 23 Serum’, ‘The Niacinamide 15 Serum’, ‘The Hyaluronic Acid 3 Serumwere sold out within 24 hours.


May 31, 2022 — cosrx inc
What's going crazy on TikTok right now? - COSRX Official

What's going crazy on TikTok right now?

COSRX's famous Snail Essence is going viral on TikTok, especially for those with acne-prone skin! @caressmd swear that COSRX Advanced Snail 96 Mucin Power Essence will make your skin baby butt🍼 smooth
February 22, 2022 — cosrx inc
Skincare FAQ : Moisturizers & Creams - COSRX Official

Skincare FAQ : Moisturizers & Creams

You’ve cleansed, and you’ve toned. Now, what’s the next step for healthy and glowing skin? Let’s stick to the classic skincare ritual – next step, moisturizers!
November 16, 2021 — cosrx inc
Serums for Every Skin Type: Suggestions from iHerb - COSRX Official

Serums for Every Skin Type: Suggestions from iHerb

Believe it or not, there really is a serum for every skin type—from blemish-prone, to dry, to dull. I highly recommend you get to know the family of skincare actives in serums, like vitamin C, retinol, salicylic acid, vitamin E, and green tea, to name just a few (of my favorites). 
September 03, 2021 — cosrx inc
Meet COSRX Hydrium Line Products - COSRX Official

Meet COSRX Hydrium Line Products

The weather’s getting hot every day, and we continue to wear face masks for protection against COVID. This means that the temperature of our skin is getting higher day after day. Skin and heat can never be best friends – high temperatures accelerate aging and cause irritation. Well, let me introduce COSRX Hydrium Line Products that can help with keeping skin cool, calm, and hydrated all-in-one!

June 11, 2021 — cosrx inc