I use a 100% natural stack called PowerFocus®.
It works better than any combination or other stack I have tried and there is no jitteriness. Its been really well reviewed on Amazon UK.
I use a 100% natural stack called PowerFocus®.
It works better than any combination or other stack I have tried and there is no jitteriness. Its been really well reviewed on Amazon UK.
I've tried this and I agree it worked best for me !!