Among the green teas in China that play a skin-care and cosmetic role, it is mainly one of the substances called tea polyphenols. This substance has an antioxidant effect, and in combination with vitamins B and E, it can add water and firm the skin. However, it should be noted that as a general term for phenolic substances or their derivatives, tea polyphenols are easily volatile in the air and lose their antioxidant effect, so such skin care products, especially facial masks, are based on the new tea products of the year. the best.
Chinese green tea contains a certain amount of caffeine. When co-existing with tea polyphenols, it can prevent the effect of caffeine on the stomach and avoid stimulating the secretion of gastric acid. Caffeine does not have the disadvantages of the body, but it promotes the central nervous system, heart and liver. Function. The aromatic compounds in Chinese green tea can also dissolve fat and prevent fat accumulation in the body. Caffeine can also promote gastric juice secretion, which helps digestion and cellulite, but women should not drink more during menstruation. Because Chinese green tea contains more tannic acid, it will combine with the iron molecules in food to form a large amount of sediment, which hinders the absorption of iron molecules by the intestinal mucosa. The stronger the Chinese green tea, the greater the hindrance to iron absorption, especially after drinking tea.Therefore, women and people with anemia should drink less strong tea even in normal times.