Yimiskin and Tea — Tea and skin: which brewed | yimiskinandtea.com
Four brews carry verified numbers in this reference: green tea, matcha, black tea and the caffeine-free herbal infusions.
Green tea is the anchor. Its leaves are 30-40% polyphenols by dry weight, mostly catechins such as EGCG, and a 240 ml cup brewed at 70-80°C for 2-3 minutes delivers that catechin fraction for 20-50 mg of caffeine — the most favourable ratio of useful compounds to caffeine spend among the true teas here.
Matcha is the concentrated option. The powder is whisked into the water and the whole leaf is consumed, so the leaf's catechin content arrives in the cup rather than staying in the strainer. The trade is caffeine: 60-70 mg per 2 g serving, more than a standard cup of green tea, which makes matcha a deliberate choice rather than a casual one.
Black tea is the familiar strong cup at 40-70 mg of caffeine per 240 ml. It fits a skin-conscious day as long as it is counted — four to five cups on their own reach the 400 mg daily ceiling that is commonly cited for healthy adults.
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Chamomile and other true herbal infusions are the caffeine-free slot. They contain no tea leaf and carry 0 mg of caffeine, which makes them the answer to the question of what to drink after the day's budget is spent.
White and oolong teas sit between green and black in common descriptions, but this reference does not quote caffeine or polyphenol figures it cannot verify, so it does not rank them. The brewing logic still transfers: greener leaves favour cooler water and shorter steeps, because water above 80°C extracts more tannins alongside the catechins.
The practical brewing rule that covers everything on this page: green tea at 70-80°C for 2-3 minutes, hotter water reserved for those who want a stronger and more astringent cup, and caffeine counted by the tea rather than by the temperature. How those cups add up across a day is worked through on /tea-caffeine-dosage.
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