Lessthanhalf wrote a brilliant response. Hgh and testosterone therapies are heavily dependent on personal goals and especially age. If you’re less than 50-ish and not clinically diagnosed with low levels, think very deliberately before embarking on a course of therapy. Recommended dosages for the non-Meso community are low - 1 iu for women, 2 iu for men. Don’t expect to see dramatic results - this is a marathon, not a sprint. I’ve been counseled that it will take a minimum of six months to really see body recomp, assuming you’re engaging in strength training. The good news about hgh is that when you stop adding exogenously, your pituitary gland will kick back in within about a week and you’ll produce your own again.
Testosterone therapy is probably a bigger decision, as this can easily be a lifetime commitment. If you’re a male in the “Wannabe a daddy” zone, you really need to think this through. You can add hcg to preserve fertility, more drastically you could freeze a bunch of your swimmers. As with hgh, dosing is highly dependent on your mindset and your goals. If you pursue the anti-aging, moderate fitness goal as a middle aged or senior, think TRT levels (or slightly above) - no more than 175-200 mg per week. Test was traditionally done IM, but more recent recommendations are trending to SQ - more steady and slow absorption with lower chance of aromatization (raises estrogen levels).
For both of these plus reta, establishing your baselines is crucial. CMP, hormones (LH,FSH, total T, free T, estradiol) and don’t forget IGF.
Get that bloodwork done before the first shot! Then start nice and slow and retest in 8-12 weeks.
Me personally - 60-ish male, was 275, now 175 (thanks tirz!) - daily routine: 25 mg Test C SQ in the am, 2 iu hgh before bed. 10 mg tirz on Sunday, 5 mg reta on Wednesday. Retesting soon.