Why mate? If anything I'd rather a beginner do a little bit AAS, maybe 200 test and 100mg of a DHT or nadrolone, 3 IU rHGH and 3IU slin pre and post workout with appropriate amount of carbs instead of banging 500mg of AAS. Turn the volume up on multiple growth pathways instead of just the one and might I say, the most damaging one. The danger comes from hypoglycemia and you'd have to be trying self harm to mess that up or legitimately not doing due diligence before using. HOWEVER personal preference is everything and if you don't want to do it then don't but rInsulin is a human use drug made for lifetime use so it ticks all the boxes.