Yes, Shiitake mushroom extracts can contain AHCC.
You should always try to find Shiitake mushroom extracts that are organic and made from the whole fruiting body and Shiitake mycelia since a lot of the AHCC is contain in the Shiitake mycelia. You can learn more about our favorite supplement containing Shiitake mushroom on our Ergothioneine supplements page.
You can find our favorite supplements containing Shiitake Mushrooms on the following page of our website to learn more.
You can also learn more in the following video.