Memory & nerve support. Powered by mushroom mycelium. Memory & nerve support known as the smart mushroom, Lion's Mane is ideal for anyone seeking cognition, memory, and mood support. Long-renowned for supporting the nervous system, studies also show that Lion's Mane can increase nerve growth factor. Lion's Mane: Promotes mental clarity, focus, and memory. Support a balanced mood. Promotes nervous system health. Support a balanced immune response. No. 1 best-selling mushroom brand in the U.S. (Source: Spinscan natural/ natural products supermarkets > (dollar) 2mm / total US - natural channel/ mushroom ingredient report/ 52 Wks ending 12/26/2021). Paul Stamets Fungi Perfecti, LLC. Powered by mushroom mycelium: Fungi Perfecti - makers of Host Defense Mushrooms - was founded by renowned mycologist Paul Stamets to build a bridge between people and fungi. We specialize in mycelium-based supplements for immune support and whole-body wellness. Sustainably grown in the USA, our mushroom mycelium is cultured on organic brown rice. Host Defense formulations are based on scientifically validated data to ensure quality and safety. - Paul Stamets. Our choices matter: This box is made with recycled paper and printed with vegetable-based ink. Learn more about our packaging and sustainability efforts at hostdefense.com. Bee friendly.