Note that truly FDA-approged phototherapy devices require a prescription in the US. It's quite likely that device isn't even UVB, much less "FDA approved" (I h

Note that truly FDA-approged phototherapy devices require a prescription in the US. It's quite likely that device isn't even UVB, much less "FDA approved" (I have a condition that requires UVb. I wasted so much money, and skin burns, on Amazon's shitty medical grey-market... )