What is green tea in skincare?
Green tea extract comes from the unfermented leaves of Camellia sinensis. Its activity is driven by polyphenols called catechins, the most abundant and most studied of which is epigallocatechin gallate, or EGCG.
On an ingredients list it appears as Camellia sinensis leaf extract. Because the catechins are potent antioxidants and anti-inflammatories, green tea has become one of the best-researched botanical actives in skincare.
What skin concerns does green tea treat?
It calms redness and irritation, making it useful for rosacea-prone, sensitive and post-procedure skin. Its antibacterial and sebum-regulating effects help mild acne and oily skin.
Topical application reduces UV-induced damage and inflammation, which positions green tea as a preventative anti-ageing ingredient alongside sunscreen rather than a replacement for it. It also supports skin under the eyes where puffiness is a concern.
What ingredients are best paired with green tea?
Layer it with other antioxidants – vitamin C, vitamin E, resveratrol, ferulic acid – for broader free-radical coverage in the morning.
For acne it works well with niacinamide and salicylic acid; for sensitivity, with centella asiatica, panthenol and ceramides. It is gentle enough to combine with almost anything, and is a good way to add antioxidant protection to a routine built around retinoids. Take our Skin Quiz.
What is oily skin?
Oily skin is a skin type in which the sebaceous glands produce more sebum than the skin needs. It shows up as shine through the T-zone within hours of cleansing, visibly enlarged pores, makeup that slides or separates, and a tendency towards blackheads and congestion.
Sebum itself is not the enemy – it carries vitamin E to the surface, keeps the barrier supple and helps oily skin hold its structure, which is why it often shows fine lines later than dry skin does.
What causes oily skin?
Genetics and androgen activity are the primary drivers of how much sebum your glands produce. Heat and humidity increase output measurably, and hormonal fluctuations across the monthly cycle, pregnancy or puberty shift it again.
Stress, a diet heavy in refined carbohydrates, and – counter-intuitively – over-cleansing with stripping foams or alcohol-based toners all push oil production up, because skin compensates for a damaged barrier by making more.
What ingredients are best for oily skin?
Look for salicylic acid (a BHA that is oil-soluble, so it clears inside the pore), niacinamide and zinc to regulate sebum, clay such as bentonite or kaolin for weekly absorption, and retinoids or azelaic acid to normalise how pores shed.
Do not skip hydration: lightweight humectants like hyaluronic acid and glycerin, plus non-comedogenic squalane or jojoba oil, keep the barrier intact so the skin stops over-compensating. Skip heavy occlusive balms and high-alcohol toners. Take our Skin Quiz to get the balance right for your skin.
