Grifron Maitake is a dietary supplement that supports daily immune health through Maitake D Fraction, a standardized extract from the maitake mushroom that helps your body stay resilient. The star ingredient, Maitake D-fraction, is designed to modulate immune activity while the product is made in a certified cGMP facility. With two decades of expertise behind Mushroom Wisdom, you’re choosing a brand known for quality and reliable, plant-based immune support.

Available Sizes & Variants:

120 capsules Maitake D Fraction Standard – convenient daily immune support.

Benefits & Features:

• Supports daily immune health with Maitake D-fraction.
• Concentrated extract from the fruiting body boosts key immune players.
• Gluten-free, vegetarian formula with no artificial colours or preservatives, suitable for many dietary needs.
• Daily dosing is simple, take with meals to maximise absorption.
• Maitake D-fraction is the star ingredient, offering immune modulation and helping support your body's natural defences when used consistently as part of a daily routine.

Grifron Maitake draws its active power from the maitake mushroom’s fruiting body using a careful hot water extraction to maximise beta glucans bound to protein. The Maitake D-fraction standard concentrates these actives to support immune function while staying gluten-free and vegetarian. Mushroom Wisdom, formerly Maitake Products, has over 30 years in the space, with products manufactured in certified cGMP facilities and a long standing reputation for purity and reliability.

Maitake Mushroom Powder, Maitake Mushroom Standardized Extract PD-fraction, Vitamin C

• GTIN: 791014104104
• Manufacturer: Mushroom Wisdom
• Categories: Bronzing DropsFunctional Mushroom SupplementsMaitake MushroomMushroom WisdomNew ArrivalsWisdom
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 4 capsules daily or take 2 capsules twice a day. Take one tablet daily.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Maitake D-fraction

Maitake D-fraction is a standardised proteoglucan extract sourced from the fruiting body of the maitake mushroom, known for immune-supporting activity.

This form is produced from Grifola frondosa and emphasises the D-fraction component designed to maximise its active compounds.

What Does Maitake D-fraction Do?

Maitake D-fraction supports immune cell function, including macrophage activity and NK cell responses, as indicated in peer-reviewed research. EFSA-aligned sources describe immune modulation as a relevant mechanism for maitake extracts.

Dr. Deng from a university found that Maitake D-fraction may influence immune activation at certain doses, contributing to overall immune health support in research contexts.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Size of the serving - 120 capsules

Mushroom Wisdom is our long-standing partner for Grifron Maitake Maitake D Fraction Standard because of a long-standing heritage in mushroom-based supplements and a recognised reputation for quality sourcing and evidence‑based formulations. This brand is a top US specialist with over 30 years in the sector, frequently cited in research on medicinal mushrooms and known for its commitment to purified actives produced in certified cGMP facilities. Their established standing among health professionals reinforces our confidence in their manufacturing discipline and safety standards, supported by a proven track record in the field.

We selected Mushroom Wisdom for its product development approach and really rigorous quality controls, including gluten-free formulas with no artificial colours, flavours or preservatives. The brand’s Maitake D-fraction Standard sits within a research‑informed framework, emphasising standardised beta glucans bound to protein, and validated through the brand’s ongoing emphasis on quality and regulatory alignment. This makes the brand a natural fit for a supplement focused on maitake-derived immune‑modulating activity while keeping consumer safety and purity.

Welzo’s team evaluated Mushroom Wisdom using our standard vetting process and criteria, including a close look at manufacturing philosophy, testing practices, and certifications. This partnership aligns with our commitment to high‑calibre, research‑driven products and is supported by our experts at Welzo's healthcare professionals and the emphasis on how we verify ingredient quality.