Green tea — Korea’s homegrown antioxidant, read off the label
Green tea (Camellia sinensis) extract appears in 1,015 of 7,878 cataloged Korean products — 12.9%.
Last reviewed 28 August 2026.
Green tea (Camellia sinensis) extract appears in 1,015 of 7,878 cataloged Korean products — 12.9%. It’s one of the few marquee K-beauty ingredients Korea actually grows at scale (the Jeju island plantations made it a national skincare signature), and on labels it works as an antioxidant-rich botanical rather than a single active molecule.
What it is
An extract of the tea plant, carrying polyphenols (EGCG the best known), caffeine, and amino acids. The cosmetic version varies widely in concentration — from a marketing whisper at the end of a list to a first-ingredient infusion where tea water replaces part of the formula’s base.
What it’s used for
Antioxidant support and a fresh, balancing skin-feel; commonly chosen for oil-prone and combination-skin formulas. Korean brands also use it as terroir storytelling — Jeju-grown tea is to K-beauty what regional grapes are to wine labels.
In the Korean market
12.9% of the catalog, distributed across essences/serums (97), cleansers (84), and sheet masks (77) — the cleanser number reflecting its fresh-finish reputation. Top partners: centella (432), niacinamide (369), ceramide NP (276). Most-committed brands: Round Lab (28), Beyond (21), Dashu (19). (The historic flagship of the category — Innisfree’s Jeju line — sits outside our current top-3 count but defined the genre.)
Who tends to like it / who should be careful
Generally well tolerated; the fresh, lightly astringent feel suits oilier skin. Position on the list matters more here than for most ingredients: last-place green tea is a label decoration, first-place green tea is the formula.
On the label
녹차추출물 or 카멜리아시넨시스잎추출물; tea-water bases appear as 녹차수. Check whether it leads the list or trails it.