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[Stopwatch]

I can't find an answer to this anywhere on the internet. My lions mane extract has been sitting around a while and it's quite old, maybe a year old. I know some supplements are fine after expiration and only lose efficacy much like advil or tylenol would. Is this the case with lions mane? What worries me is it being mushroom derived, and so I naturally think there would be more consequences for taking it after expiration. Does anyone know?