Thank you very much for viewing. Instant purchase is welcome. Expiration date: March 7, 2039 The raw materials are from 2013. Yunnan Seven Sons Bing Pu'er Tea Ripe Tea [Yiwu Old Tree] 357g Pu'er tea is also popular in Japan as a health tea. Of course, people drink it because it tastes good, but many people also drink it expecting the effects of Pu'er tea. Research has shown that Pu'er tea has health benefits. Here, I would like to introduce the ingredients and effects of Pu'er tea that are said to be good for health. ◯ Not only Pu'er tea, but also tea contains a lot of antioxidants. Why are these antioxidants, which prevent cell aging and keep the body youthful, produced? When tea leaves are exposed to sunlight, oxidation (= aging) progresses due to ultraviolet rays from the sun. Antioxidants are produced to prevent this and keep the leaves youthful. Polyphenols, tannins, and tea catechins, familiar ingredients, are a type of antioxidant. Living things (to be exact, organisms that use oxygen to live) can produce a lot of energy by breathing in oxygen and grow. However, active oxygen is produced in the body every time we breathe, damaging cells. Cells are also damaged and aged by ultraviolet rays. We are destined to age in exchange for gaining energy. It is a fate that cannot be avoided in life, but living things have evolved to heal and prevent damage from the side. Taking foods containing antioxidants is an example of a biological defense mechanism. I would like to incorporate these ingredients into my daily life to prevent the aging of my body. ◯ Pu'er tea also contains fluorine. Fluorine is a familiar ingredient for preventing tooth decay. ◯ The effects of Pu'er tea that are often mentioned are the improvement of constipation and the relief of stomach upset. ◯ The effects of Pu'er tea that are often mentioned are the improvement of constipation and the relief of stomach upset. ◯ Pu'er tea can also be expected to have a deep relaxing effect.