1The low-molecular hyaluronic serum that anchors this category. Lightweight, plumping, and friendly to every skin type — the safe first serum, and the chart's runner-up overall.
Hyaluronic, PDRN, niacinamide — the targeted Korean serums charting on Olive Young this week.

Serums are where a routine gets specific. We started from the serums and ampoules charting in Olive Young's skincare bestsellers this week and curated by the concern each one targets — hydration, brightening, barrier and the salmon-DNA ingredient (PDRN) heating up across our radar.
1The low-molecular hyaluronic serum that anchors this category. Lightweight, plumping, and friendly to every skin type — the safe first serum, and the chart's runner-up overall.
2A high-strength niacinamide-and-tranexamic-acid serum aimed squarely at post-blemish marks and uneven tone. The brightening pick, from the brand our board keeps surfacing.
3A PDRN-and-hyaluronic serum riding the salmon-DNA ingredient that's the fastest-heating signal on our Ingredient radar. Bouncy, hydrating, very of-the-moment.
4A concentrated hyaluronic ampoule meant to be layered under moisturizer for a hydration hit. The step for skin that drinks everything and asks for more.
5A madecassoside serum built to calm active breakouts and the redness they leave. Soothing-forward rather than stripping — repair, not punishment.
A zinc-and-cica serum aimed at oil control and blemishes without over-drying. The budget-friendly troubleshooter that keeps charting.
Every pick is cross-checked against our weekly retail rankings — the same archive we publish and cite. See how each metric is defined on /methodology.