I have concentration problems sometimes, I think this can be a solution
Pity you can only use it 30 min a day
Pretty interestingMané Karen has never used this product.
Based on the researches: I guess it works :)
didn't try it myself yet :)
it claims to solve a real problem I have, and it seems a real solution. I think I'll try one!Gevorg Poghosyan has never used this product.