Just get some plain old Arginine Alpha-ketoglutarate (which is a shit load cheaper than the branded products) and put a heaped teaspoon in some Tesco's Diet kick. Drink it about half an hour before your workout....but ONLY before a workout!
This works for me and i haven't responded to ANY of the brand named NO products.
Alternatively, save up your money and get some Gh in yer, that WILL give you the pumped feeling your after!
