Moon Regulator is my go to defense for menstruation. She's a powerhouse in pain and cramp management, she's a calming breeze to the nerves, regulating the cycle to work within your spirit, not against it. May have a drowsy effect for some. Each tin has a double seal lid, 21 biodegradable hand tied tea bags, filled with 2 tsp of loose herbal blend, & a waterproof label which easily removes for reusing your tin.