Ingredient guides
The shortest path to a better under-eye is understanding what's in the patch. Here's what each ingredient actually does, what the evidence says, and which patches use it well.
Niacinamide in Under-Eye Patches
Niacinamide is the dark-circle workhorse: it inhibits melanin transfer, strengthens the skin barrier, and plays well with every other active in your routine.
Caffeine in Under-Eye Patches: Does It Actually Work?
Caffeine constricts blood vessels and improves circulation under the eyes — the only ingredient with strong, consistent evidence for reducing puffiness on contact.
PDRN in Under-Eye Patches: The K-Beauty Ingredient Taking Over 2026
PDRN — Polydeoxyribonucleotide — is a salmon-DNA-derived skin repair molecule that's become K-beauty's defining 2026 ingredient. Here's what it actually does, and which patches use it well.