When companies try to market a product, they slap labels on the bottles which mock that of real steroids. An example is the retard on here who bought "Test-600", and thought it was testosterone.
No, you cannot buy any variant of IGF in a supplement store, they just brand their product "IGF" as a selling edge for inexperienced noobs. You cannot swallow IGF because the amino acid will immediately dissociate ones it passed through the liver. You can only inject IGF.
Do a quick search online if you want the real stuff: ergopep, extremepeptide, greatwhitepeptides, exc.