I have mixed feelings over this product. . . .
I could run further and train longer before feeling fatigued if consumed half 20minutes or so pre-workout,
But because of the taste I found it difficult to drink during training which was the reason for buying a tub of scivation x-tend.
I personally think the blue raspberry flavour should have been named poo assberry, it was a mix of too sickly sweet and an almost aspirin flavour which would make me feel a bit nauseous and dry throated whilst training.
It sat untouched in the cupboard for a while diddnt want to waste it so I started adding it to my post work out protein shake, (during this time none of the other supplements I was using hadd extra BCCA's or contained glutamine, so it was the ideal way for me to add glutamine and boost the amino content of my post workout protein shake whilst being able to stomach the taste.
Scivation x-tend is packed with B vitamins BCAA,s & Glutamine
Extends endurance, enabled me to train for longer if consumed before training, (possibly due to the B vitamins)
but because of the sweet taste it was hard to drink whilst training
Try it, you may like it, but I'm not buying it again as an intra drink because of the taste