You make a mushroom tincture by soaking mushrooms in alcohol or a combination of alcohol and water, creating a concentrated liquid. Extracting these compounds includes pulling out beta-glucans, which can help your immune system, erinacines to support memory and focus, and triterpenes, which may lower inflammation. Because some types of mushrooms are too tough or taste bitter, tinctures often replace eating raw mushrooms. Taking tinctures as liquids allows your body to absorb healing compounds faster and dose them more accurately.