Yes and no. Yes as in it's an excellent carb source, with added creatine for muscle recovery. It has WMS(Waxy Maise Starch), which in itself is a debatable carb source but almost everyone I've read to use it says it works amazingly. In fact it's what I use post workout. The claims say that it's alot heavier than plain dextrose on the molecular level which allows it to empty the stomach immediately and go straight into the intestines to be absorbed into the blood stream then your muscles. I've had amazing success with it and no down falls. I'm able to use large amounts of it with minimal fat gain, unlike normal sugars.
But no, it doesn't metabolise or "turn" into muscle. It helps replenish your glycogen stores which in turn give your muscles energy to heal and recover. Actual muscle building comes from the protein you consume.
If you have creatine already I wouldn't go with the vitargo. Plus, some may say that 10g of creatine in one shot may just be pissing money away. Most only need 3-5g.