Who makes COSRX? Amazon sales, products and sellers
Updated November 2026 with September 2026 data
At a glance
- Size
- Large
- $7.7M est./mo
- Trend
- Stable
- -9%, last 2 vs prior 2 months
- Ratings
- Strong
- 4.5 ★ · 445,459 reviews
- Who sells it
- Mostly one seller
- Top seller has 95% of units
COSRX estimated monthly revenue on Amazon
Our read on COSRX
COSRX is a large brand in the Serums category of Beauty & Personal Care, ranking 5 among 814 brands and holding an estimated 3% of category revenue. In September 2026 it had estimated revenue of $7.7M on 389,000 units, with 93 products selling. Estimated revenue is down 12% since June 2026, when it was $8.7M, and the trend over the last 2 months is labeled stable at -9%. The brand holds an average rating of 4.5 across 445,459 reviews. Its top product, the Snail Mucin 96% Repairing Serum, sells about 73,000 units per month at a 4.6 rating. Sales are concentrated: COSRX itself accounts for 95% of units among 10 sellers, with Even more Beauty at 2% and DZMALL at 1%. This view covers 4 months of data.
Top COSRX products on Amazon
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| Product | Rating | Est. units/mo | Amazon link |
|---|---|---|---|
| COSRX Snail Mucin 96% Repairing Serum for Sooothing & Hydrating 3.38 | 4.6 ★108,123 reviews | 73,000 | Check price on Amazon |
| COSRX Snail Mucin 92% Face Moisturizer for Soft & Glowy Skin | 4.5 ★63,936 reviews | 31,000 | Check price on Amazon |
| COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull Skin | 4.6 ★13,214 reviews | 23,000 | Check price on Amazon |
| COSRX PDRN Exosome Overnight Face Mask | 4.5 ★2,241 reviews | 19,000 | Check price on Amazon |
| COSRX Pink Peptides Collagen Hydrogel Eye Patch for Puffy Eyes | 4.4 ★5,467 reviews | 17,000 | Check price on Amazon |
| COSRX Low pH Good Morning Gel Face Cleanser | 4.5 ★21,425 reviews | 13,000 | Check price on Amazon |
| COSRX The Blue Copper Peptide Bakuchiol Serum | 4.5 ★866 reviews | 12,000 | Check price on Amazon |
| COSRX Vitamin E Sunscreen SPF 50 | 4.5 ★5,283 reviews | 12,000 | Check price on Amazon |
| COSRX 7X Ceramide Moisturizer for Face | 4.7 ★1,414 reviews | 11,000 | Check price on Amazon |
| COSRX Hyaluronic Acid Cream | 4.6 ★8,773 reviews | 10,000 | Check price on Amazon |
Who sells COSRX
- COSRX95%
- Even more Beauty2%
- DZMALL1%
- Wholesale Plus Traders1%
- Elle Garden. LLC<1%
Share of estimated units sold in September 2026, by the seller holding the Buy Box.
Place in its category
#5 of 814
Rank 5 of 814 brands in Serums by estimated revenue in September 2026, with 3% of the category.
Frequently asked questions
Who makes COSRX?
COSRX is the brand name on 93 products we tracked on Amazon in September 2026 mostly in Serums (Beauty & Personal Care). The largest seller of COSRX products that month was COSRX, with 95% of estimated units. Amazon listings don't show the brand owner's legal name, so the brand's own website is the place to confirm its parent company.
How much does COSRX sell on Amazon?
COSRX sold an estimated $7.7M on Amazon in September 2026, about 389,000 units. That is -12% compared with June 2026. These are Ecominsights estimates, not figures reported by the brand.
What are COSRX's best-selling products on Amazon?
By estimated units sold in September 2026: 1. COSRX Snail Mucin 96% Repairing Serum for Sooothing & Hydrating 3.38 (about 73,000 units); 2. COSRX Snail Mucin 92% Face Moisturizer for Soft & Glowy Skin (about 31,000 units); 3. COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull Skin (about 23,000 units).