The main raw material comes from wine
Grapes and red wines on the market contain extremely best resveratrol, but the content is extremely small. If you want to eat enough to play a role in beauty care by eating grapes or drinking red wine, it is very difficult.
Cruel natural environment produces resveratrol
The famous French Bordeaux is the main base for producing grapes, but there is no good environment for grape growth. The strong winds of the Atlantic Ocean make it easy for grapes to have gray mold. However, it is this harsh environment that produces grapes that protect themselves from ultraviolet radiation and Botrytis pathogens. Therefore, the Bordeaux grape with poor living conditions has a higher resveratrol content.
Japanese Okayama specialty grape is rich in resveratrol
Okayama Prefecture is located in the western part of Japan, with outstanding people, snow-capped mountains in the north and the Seto Inland Sea in the south. The annual precipitation is about 1100 mm, making it one of the regions with the least rainfall in Japan. The annual sunshine is about 2,000 hours, which is most suitable for the growth of fruits and fruits. It is known as the “fruit kingdom”.
Since the Edo period, Okayama has a tradition of growing grapes. It has been a major grape producing area in Japan for hundreds of years. Among them, the most distinctive one is the "cat eye grape". The annual global production of cat's eye grape is only 18,000 tons, which is rare and rare. It is known as the crown of the grape. With an annual output of 8,000 tons, Okayama is world-famous because it is green and pure and pollution-free. It is rich in trans-resveratrol and multivitamins that have a very pharmacological effect on the human body.
Resveratrol with Polygonum cuspidatum
In addition to grapes, plants containing more resveratrol also have Polygonum cuspidatum, a herbaceous herb. The Chinese used it as a prescription for diuresis and constipation. It is easier to extract resveratrol from the roots of Polygonum cuspidatum than in grapes. It has been taken in capsules in Europe and America. In Japan, in view of the side effects of urinary frequency and diarrhea, it is strictly prohibited to be used as food. Therefore, oral capsules made from Polygonum cuspidatum extract are also prohibited.