What are your thoughts on Scivation Xtend?

Xtend is a BCAA / glutamine / citrulline containing supplement designed to be taken during training. BCAAs (branched chain amino acids) are 3 of the essential amino acids and include probably the most anabolic amino acid, L-leucine. However, the other 5 essential amino acids (all of which are needed to build muscle) are missing. I always use and advise using all 8 essential amino acids.

The Glutamine is added for "cell hydration" - whatever that is and because glutamine is the body's most abundant and probably the most popularly-supplemented amino acid.

Citrulline is added to give a muscle pump and it is effective in this capacity (although more than 1 gram is needed).

So this is a good BCCA "plus" product and it is very popular with guys who train with weights.