Four Sigmatic - Reishi Mushroom Elixir Mix - 20 Bag(s) - NPN: 00000000 -- what does it do?If you have occasional stress and difficulty sleeping, reishi mushroom can help you relax and get a good night of sleep.what is it?A mushroom drink powder that can help you relax and get a good night of sleep.How many?20 powder packets per boxhow powerful is it?1, 000 mg of dual-extracted, log-grown (not grain) red reishi fruiting bodies per packet.How do I use it? Add one packet to 8 fluid oz. of hot water, or blend it into your favorite smoothie. Drink two hours before going to bed, or during a stressful day. Drink one packet per day.