Also known as: Camellia sinensis leaf extract, EGCG
What Is Green Tea?
Green tea comes from the leaves of the Camellia sinensis plant, processed without the oxidation used to make black tea. That keeps more of its polyphenols intact, especially catechins such as epigallocatechin gallate, often shortened to EGCG. These compounds are well known antioxidants, which means they help neutralize free radicals generated by UV light, pollution and other everyday stressors.
In Korean skincare, green tea is closely associated with Jeju Island, where tea is grown on volcanic soil, and it appears in toners, serums, cleansing foams and moisturizers. Beyond antioxidant support, green tea is valued for a calming effect on skin that looks red, and many people with oily skin like it for the fresh, balanced feel it gives lightweight formulas.
Antioxidants work best as a team, so green tea fits naturally with vitamin C and niacinamide in a morning routine.
Green Tea Benefits for Skin
- Provides antioxidant defense against environmental stress.
- Helps calm the look of redness.
- May help oily skin feel more balanced.
- Light enough for layered morning routines.
- Complements sunscreen as part of daily protection.
How to Use Green Tea
Use a green tea toner or serum in the morning after cleansing, followed by moisturizer and sunscreen. Antioxidants are most useful during the day when skin faces UV and pollution, which makes green tea a good fit for a morning routine.
Green tea extracts are not a substitute for sunscreen. Apply broad-spectrum SPF as the last step, as covered in how to apply sunscreen. Green tea cleansing foams are also popular, but because they rinse off quickly, a leave-on toner or serum gives the extract more time to work. Wash-off clay masks with green tea can help oily skin feel fresher once or twice a week.
Side Effects & Precautions
Green tea extract is generally well tolerated. Some highly concentrated or alcohol-heavy formulas can feel drying, and plant extract allergies are possible but uncommon. Discontinue use if you notice persistent irritation.
Green tea catechins are sensitive to light and air, so formulas in opaque or airless packaging tend to hold up better. A slight color change over time is common in products with a high amount of extract. Drinking green tea is a fine habit, but it does not replace topical care or sunscreen. Some green tea products are paired with exfoliating acids for oily skin, so read the label and introduce those slowly.
Frequently Asked Questions
Is green tea good for acne-prone skin?
It can be a helpful supporting ingredient, since it has calming and antioxidant properties and suits oily skin. It works best alongside proven acne actives, not instead of them.
Can I put brewed green tea on my face?
Homemade tea is not preserved and its strength is unpredictable. Formulated products are a safer and more consistent way to use green tea.
Should I use green tea in the morning or at night?
Either works, but morning use makes the most of its antioxidant benefits during daytime exposure. At night it still adds calming support.