Ingredient glossary
Green Tea Extract
On your shelf ✓What Green Tea Extract does for your skin, who it suits, and what to watch for.
INCI: Camellia Sinensis Leaf Extract · Also: EGCG
In short: Green Tea Extract delivers antioxidant and photoprotection, suits oily skin best, and the evidence behind it is moderate. One thing to know: clear it with your doctor if pregnant; introduce it gently.
- What it does
- Antioxidant, photoprotection
- Best for
- Oily skin
- Watch out
- Clear it with your doctor if pregnant; introduce it gently
- Evidence
- Moderate
- How long
- Never measured
The Glow take
Genuinely worth a spot in your routine.
When your goal is calming breakouts and congestion, Green Tea Extract pulls genuine weight, with a solid amount of evidence behind it. Introduce it gently, and pair it with something soothing if your skin runs sensitive.
— Maya
What it does
- antioxidant
- photoprotection
- anti inflammatory
- anti acne
moderate evidenceMechanistic work and small split face trials show reduced UV induced damage and some reductions in sebum and inflammatory lesions yet instability and variable formulations limit consistent clinical impact.
Who it's for, and who should skip it
Tends to suit
- oily
- acne prone
- photoaged
- rosacea
- sensitive
Approach with care
- very sensitive
- Clogs poresLow
- Irritation riskModerate
How it fits each skin type
- DryNeutral
- CombinationNeutral
- OilySuits
- SensitiveTake care
Often chosen for acne prone, photoaged, rosacea.
Where it fits in your routine
Nobody has published how long this takes to work.
What is known, and what is missing
Measured on: acne lesion count and photoageing grading — the jobs this row is sold on.
The 6-week figure traces to a single-arm open-label study of 20 patients applying 2% green tea lotion twice daily: there is no vehicle and no control group, so the 58% fall in lesion count cannot be separated from regression and from being observed, and an uncontrolled study cannot date anything. Two corrections to how it is usually quoted: patients were seen every two weeks, so six weeks was not the only assessment, and the paper's 'total lesion count' is papules plus pustules, with the severity index an author-devised 1-3 scale derived from that same count rather than an independent endpoint. Where the extract itself has been tested properly it failed: a double-blind placebo-controlled trial of 10% green tea cream plus oral supplementation in 40 women found no significant difference in clinical grading at 8 weeks, with only a histologic elastic-tissue change. The one controlled positive acne result is an 8-week randomised split-face trial of purified epigallocatechin-3-gallate — a single isolated catechin, not Camellia sinensis leaf extract, and at a defined purity a variable botanical does not have. The photoprotection side is a different endpoint on a different clock: suppressed UV-induced erythema and sunburn-cell formation measured hours after a single application.
Elsaie ML, Abdelhamid MF, Elsaaiee LT, Emam HM. The efficacy of topical 2% green tea lotion in mild-to-moderate acne vulgaris. J Drugs Dermatol 2009;8(4):358-64. PMID:19363854 — uncontrolled, single-arm, n=20. Negative controlled trial of the extract: Chiu AE et al. Dermatol Surg 2005;31(7 Pt 2):855-60. PMID:16029678. Purified-catechin trial, not the extract: Yoon JY et al. J Invest Dermatol 2013;133(2):429-40. PMID:23096708.
Plays well with
- niacinamide
- vitamin c
- sunscreens
Green Tea Extract, answered
Is Green Tea Extract safe during pregnancy?
Clear it with your doctor first. Green Tea Extract is flagged as use-with-caution during pregnancy and breastfeeding, so check with your doctor or midwife before adding it.
Who should avoid Green Tea Extract?
Approach Green Tea Extract with care if any of these apply to you: very sensitive. Its irritation risk is moderate, so introduce it slowly and patch test first.
What concentration of Green Tea Extract actually works?
Its concentration is rarely printed on the label, so use the ingredient list as your clue: near the top third it is likely doing real work, near the bottom it is more of a sprinkle.
During pregnancy
Treat Green Tea Extract as a maybe rather than a yes for now. It is flagged as one to use with caution while pregnant or breastfeeding, so it is worth clearing before you carry on.
When in doubt, check with your doctor or midwife. They outrank any website, including this one.When it is worth booking →
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