HigherDOSE combines the healing art of bathing with science-backed ingredients to relax your body and boost your mood. The base of their Serotonin Soak is one of the purest forms of magnesium chloride available, extracted from the underground remnants of the ancient Zechstein Sea. To that, they add detoxifying French Green Clay and other natural ingredients so that all you have to do is run the tub, add a few scoops, and drop into euphoria.