Best of K-Beauty
Best K-Beauty Serums for Oily Skin
44 serums reviewed and ranked for oily skin. Updated 2026.
Serums are your targeted treatment step, and oily skin needs serums that address shine and pores without adding weight. Water-based, oil-free serums with pore-refining actives deliver real results — the kind that make you stop reaching for blotting papers by noon. Avoid silicone-heavy serums that sit on oily skin.
What to Look For
- ✓ Oil-free, water-based formula that absorbs fast
- ✓ High concentration of pore-refining and oil-regulating actives
- ✓ Non-comedogenic and lightweight under sunscreen
Key Ingredients
- Niacinamide — At 5%, visibly reduces pore size and oil production
- Vitamin C — Brightens while controlling oxidative damage to sebum
- Azelaic Acid — Clears pores and fades dark spots without drying skin
VT Cosmetics
9/10 · serumReedle Shot 100
At-home microneedling in a bottle. The spicules are made from freshwater sponges and feel like tiny prickles as you massage them in — the sensation is alarming the first time but completely normal. Over 4-8 weeks, it genuinely improves texture, reduces pore visibility, and smooths scarring. Start with the 100 concentration before graduating to 300 or 700.
