Weider Speed Booster Plus II
Weider Speed Booster Plus II contains guarana extract, arginine, ornithine, methionine and taurine.
Guarana contains natural caffeine, which has a delayed release. This means that, the guarana in Speed Booster Plus 2 provides 165mg caffeine per portion. This is the same as in three cups of coffee. Only 5g carbohydrates per serving!