We are the only company in the nation that makes a Lions Mane Mushroom Tincture with 3 species of Hericium. Alaskan-Grown Hericium Erinaceus, Wild Hericium Coralloides, and Wild Hericium Albietis, all come together to make this one of the most wide-spectrum Lions Mane Mushroom tinctures you will ever come across. The erinaceus (the one that's the subject of most of the research) is actually cultivated by a company here Fairbanks. I've been personally working with mushrooms for over 10 years, and was lucky enough to learn from top mycologists. Mushrooms are a big part of my life so I create our mushroom products with care and respect and diligence. Please visit our etsy or website to find out more or see our reviews.