Type-IIx
Member
The 6 week mark (at a constant rhGH dose) is when serum IGF-I peaks on an rhGH regimen, and provides an accurate measure of the user's GH response or sensitivity of liver somatotrophs.I will look it up, it was in one of @Type-IIx posts. To get an accurate igf-1 reading it was somewhere around the 6 week time mark to get bloodwork done.
RhGH (recombinant human growth hormone) stimulates a significant increase to IGF-I within hours... but so do any variety of secretagogue peptides (Ghrelin mimetics, GHS-R agonists; GHRP-R agonists; GHRH-R agonists) and insulin (recombinant formulations, etc.)
You use the 6 week IGF-I bloodwork measure to quantify your GH response, not to authenticate/verify or quality/purity test a formulation. For that you'd use HP/LC testing like what janoshik provides.
