Grifron® Maitake D-Fraction® Standard (Tincture) contains purified and standardized 'active proteoglucan' from Maitake mushroom (Grifola frondosa) with standard strength. This product is most suitable for regular health maintenance for healthy people. For other purposes 'Grifron® Pro' line with professional strength, which is 4 times more concentrated, is recommended.

The active proteoglucan, often referred to as D-fraction by scientists, is a unique beta glucan conjugated with protein which has been identified and isolated as a responsible substance for potent immune activating property of Maitake mushroom.

Grifron® Maitake D-Fraction® Standard 4 oz. bottle contains 3,000 mg of PD-Fraction, which is standardized to contain more than 900 mg (30%) of the active proteoglucan.