Polyphenon is a high-quality tea catechin extracted from natural tea leaves by an efficient extraction method
that Mitsui Norin Co., Ltd. was the first in the world to succeed in developing.
Polyphenon works both internally and externally to promote health.
Polyphenon announcements and press releases.
Customer's questions on Polyphenon answered.
Various functions of Polyphenon explained.
Our Food Research Laboratory where R&D for Polyphenon takes place.
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