Terrasoul Superfoods Lion’s Mane Mushroom Powder (4:1 Extract), 5.5 Ounce USDA Certified Organic, Non-GMO, Gluten-Free, Vegan Lion’s Mane Mushroom 4:1 Extract Powder is concentrated to ensure maximum digestibility and potency. We lab test each batch for purity and potency. 100% Money-Back Satisfaction Guarantee – We stand behind our products and offer a 30-day money back guarantee, backed by an outstanding customer service team.