I came across an advert for 'Maximuscle Extreme Viper bars/tablets' and the ad said that they promise better performance,physical and mental boosts etc etc.
Just wondered if these products are allowed,whether they help and whether they are safe.
Ingredients include l-tyrosine which apparently is an 'excitatory brain amino acid'.
Anyone familiar with this product?
ps I usually just eat well,eat a banana 20 mins before a run,plenty of water and sometimes a lucozade sport(with caffiene) but if these products are safe and work I would like to try..