Idk but the shower feels awesome baked.. and swimming in a pool too! doesnt affect my high.. I LOVE it.. like going underwater blasted with your eyes closed twirling around feels so relaxing.. like a dream almost.. Also i had those motor things that the underwater scientists and scuba people use its like a lil engine thing that has handle bars and you push a button while holding on and it propels you through the water pretty fast too man.. its AWESOME high.. it's like being flying fast as fuck under water with out getting tired... fun stuff.