Green tea shows up on a great many skincare labels, usually as "green tea extract" or by its botanical name, camellia sinensis leaf extract. It has a good reputation and a solid basis in laboratory research. What it does on a real face is more modest, and the gap is worth understanding.
What is in green tea
The ingredients of interest are polyphenols called catechins, and the main one is epigallocatechin gallate, usually shortened to EGCG. Green tea also contains caffeine.
Catechins are antioxidants. They neutralise reactive molecules created in skin by sunlight and pollution, which damage cells and the proteins that keep skin firm.
What the lab research shows
In cell cultures and animal studies, green tea extract and EGCG calm inflammation, reduce some of the damage ultraviolet light causes, and slow the breakdown of collagen. These findings are the basis of most of what is written about green tea.
Lab results are a starting point. Skin is a barrier, and an ingredient that works on cells in a dish still has to get through it, in a stable form, at a useful amount.
What the human research shows
Human studies are fewer and smaller. Some found that creams with green tea extract reduced redness or oiliness, or slightly reduced sunburn redness when applied before sun exposure.
Two points matter more than any single result:
- The trials that found a skin effect used green tea preparations far stronger than an everyday cream usually carries
- The most carefully controlled trial on sun-aged skin combined a green tea cream with green tea supplements by mouth, and found no visible improvement over placebo
So green tea is a reasonable antioxidant in a formula. It is not a proven treatment for wrinkles, acne or pigmentation, and it is not a sunscreen.
Green tea and oily skin
The oil-reduction findings come from small studies of strong green tea emulsions. They are interesting, not settled. Oily skin has better-tested options in a gentle cleanser and a light moisturiser. Does oily skin need moisturiser and open pores on the face cover them.
Green tea and dark spots
Lab work suggests EGCG slows pigment production, but there is no good human evidence that green tea fades dark spots. How to fade dark spots covers the ingredients with better evidence behind them.
Home uses
Cold tea bags on the eyes. The cold does most of the work, constricting blood vessels and reducing puffiness for a while. Caffeine may add a little. It does nothing for the pigment that makes most Indian dark circles dark. Dark circles: what skincare can do explains why.
Green tea as a toner. Cooled green tea splashed on the face is harmless and refreshing. Brewed tea spoils within a day or two, so make it fresh and keep it in the fridge.
Drinking it. Green tea as a drink is fine, but there is no good evidence that drinking it changes how skin looks. Does diet affect pigmentation covers what food can and cannot do.
Limits and cautions
- Green tea is rarely irritating, but any plant extract can cause an allergy. Patch test a new product
- Antioxidants support sunscreen and do not replace it. Which SPF for Indian skin covers that side
- A label that leads with green tea says little about how much is in the bottle
Where the Cham range fits
Camellia sinensis leaf extract is in two Cham products: the Brightening Face Cream and the Brightening Face and Body Serum. In both it sits in the lower half of the ingredient list, where formulas carry ingredients in small amounts.
It is there for antioxidant care in the mix, alongside niacinamide, ceramide NP and centella asiatica, and that is all we claim for it. Nothing in the range is presented as a green tea treatment.
