Derma Factory never left Coupang's skincare top five
Three brands took Coupang's skincare #1 in a single week — TONYMOLY, then WELLAGE, then Derma Factory. Under the churn one brand never moved: Derma Factory was in the top five on every day we read.
Coupang is Korea's everything store, and its skincare best-seller list moves daily. We captured it on six days last week.
A rotating #1
Fact. #1 was TONYMOLY's Ceramide Mochi Toner on Oct 6, WELLAGE's Real Hyaluronic Blue Ampoule on Oct 8 and 9, and Derma Factory's Niacinamide 20% Serum on Oct 10, 11 and 12. MEDI-PEEL's Melanon X Cream was in the top five on four of the six days.
One constant
Observation. Derma Factory had a product in the top five every day — usually its Niacinamide 20% Serum or its Retinal 300ppm Cream, and on several days more than one. Inference. On Korea's mass online shelf, the steadiest seller this week was not a hero product from a big beauty house but a brand whose labels lead with a single active and a number. It's the same pattern we saw when we set Coupang beside Olive Young last week.
How to read this
Six days captured (Oct 7 is missing; days without a verified capture are skipped). Sizes and bundles of one product are listed separately by the retailer. Daily chart position, not sales.
"Derma Factory never left Coupang's skincare top five" — kbeautytmi, 2026-W42. https://kbeautytmi.com/stories/derma-factory-never-left-coupangs-skincare-top-five-2026-w42
↗ Chart image — free to use with credit Free to cite — rankings can't be collected retroactively, so this archive exists nowhere else.