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Another Secret of Oolong Tea 〜Oolong Tea Has Surprising Benefits〜
Free Radicals and Polyphenols

・What are free radicals?

Free radicals are substances that have become oxidized in the body. They are generated within the body in order to protect it from exogenous harmful factors. However, they are also formed when we are exposed to ultra-violet rays and stress, take in chemical food additives, smoke of tobacco, or when we are involved in too much exercise. It has also become clear that as we get older, the amount of free radicals within the body increases naturally.
・Free radicals are a serious enemy to health and beauty.
Free radicals oxidize the regular lipids within the body to convert them into lipid peroxide. This can cause adult diseases, such as arteriosclerosis and diabetes, as well as dark spots and wrinkles on the skin.
・Free radicals damage the skin.
The skin is constantly exposed to free radicals that are formed by many different external factors. If no countermeasures are taken against free radicals, melanin pigmentation become dark spots, lipids that should keep the skin fresh turn into lipid peroxide, and the aging of the skin accelerates. Women in particular fear the negative effects of free radicals.
・SOD controls the effects of free radicals.

The human body's system is equipped with a natural mechanism to control the effects of free radicals and minimize their damage. This is an enzyme called SOD (superoxide dismutase). If this enzyme functions fully, it removes the free radicals that are formed within the body. But SOD is stored within the body and cannot be supplemented like other kinds of nutrition, such as vitamins. In order to strengthen SOD, we need to enhance its function by using something else. Polyphenol, which is found in oolong tea, plays an important role in this regard.

・The benefit of polyphenol in oolong tea has been confirmed by clinical trials.
Polyphenol in oolong tea offers two functions (as does SOD), one of which is to enhance the function of enzymes and the other is to remove free radicals. In clinical trials, we asked people to drink oolong tea that was produced by infusing two packs of the tea in boiling water twice a day for three months, and we then measured any changes in the function of SOD before and after the intake of oolong tea. The results can be summarized as follows:
1. Continuous intake of oolong tea is effective in enhancing the effect of SOD within the body.
2. It is very effective in delaying the appearance of signs of aging, such as dark spots and wrinkles, by strengthening the effect of copper-zinc-SOD, which acts favorably within the cutaneous cells of the skin.

3. Oolong tea is also highly effective in improving both spleen energy-weak and kidney energy-weak symptoms as diagnosed in Chinese herbalism.

The effectiveness of polyphenol in oolong tea has been confirmed scientifically.