guys this is a reputual company. they manafacture products for well known vet pharmacutical companies in the US. but to honest i dont know if the IGF they are selling is long igf. they are selling different kind of igf with different molecules attached in different positions in the igf, each one is for different biological purpose, so need an expert to determine which one is best. or maybe you can email them.
i heard from big cat that IGF-II is more anabolic than IGF-I, but it has some problems, here is what he said about it:
IGF-II : IGF-II's anabolic potential is considerably larger than that of IGF-I. It works its magic via both the IGF-I receptor and the insulin receptor. In rodents, IGF-II expression is diminished postnatally, but not in humans, making it a legitimate point of manipulation. IGF-II is reduced strongly by the IGF-II/M6P receptor, making this one possible point of intervention. Insulin for instance increases IGF-IIR translocation, so methods of reducing insulin release would work. Only release however, since affecting insulin receptor or downstream targets thereof would reduce anabolic efficacy of IGF-II.
