Tesa, GH, iu, mg, z-score

[Bastogne22]

Can somebody explain this to me like I'm in the 5th grade?

Why do we start using iu when discussing these? Doesn't it still matter the strength of your vial? Why not still speak in the terms of 1mg/2mg/3mg/4mg? Is it true that in your late 40's/50's you need not be so concerned about your IGF-1 level and that your z-score is just a comparison to other people in your age bracket?

I am currently on TRT and Reta. Looking to add Tesa to the mix but trying to do my research and have a solid understanding before I just start pinning.

 

[woundcarping]

IU is for HGH, everything else in this space is in mg.

 

[Diamondd817]

Standard Tesa dose is 2mg daily.

 

[Bastogne22]

IU is for HGH, everything else in this space is in mg.

I thought I had read in some places, maybe not this forum per se, that they refer to secretagogues like Tesa in iu as well.

 

[woundcarping]

I thought I had read in some places, maybe not this forum per se, that they refer to secretagogues like Tesa in iu as well.

They might talk about "units" related to insulin units on the insulin syringe they're injecting with, but not IU for secretagogues themselves, they are dosed by weight.

 

[Tbagger]

HGH is the only compound I know of that is dosed in IU. Not sure why, but the conversion is 1iu = 0.33mg for hgh. That conversion is only good for HGH since every compound that is measured in IU has its own conversion rate. It’s a really convoluted system IMO.

Tesa, the rest of the peptides, and ASS all are dosed in mg. People will refer to their dosage in “units”, but they just don’t know what they are doing and are referring to injection volume (0.01ml = 1unit) rather than actual dosage.

 

[CNCCurrency]

IU is for HGH, everything else in this space is in mg.

I believe HCG is also in iu's.

 

[woundcarping]

I believe HCG is also in iu's.

You’re correct, I hadn’t thought of that and they definitely fit in this “space.”

HCG is a protein, not a peptide (237 amino acids, peptides are 50 or less.)

 

[CNCCurrency]

You’re correct, I hadn’t thought of that and they definitely fit in this “space.”

HCG is a protein, not a peptide (237 amino acids, peptides are 50 or less.)

So is hgh, who was talking about peptides? I thought everyone was talking about mg and iu?

 

[birdwhacker]

Pharmaceutical/veterinary oxytocin is dosed in IUs as well, but grey space oxytocin is dosed by weight.

 

[woundcarping]

So is hgh, who was talking about peptides? I thought everyone was talking about mg and iu?

Which is probably the reason I started with “you are correct.”

I was thinking “this space” = peptides, but there’s common talk about HCG.

Lots of vitamins are measured in iu based on variability in potency back in the day.

 

[Cannonball72]

I knew the answer reason, had just read it the other day. This is from Claude.

IU (International Units) are used because hormones are commonly measured by biological potency (how much effect they produce in a standardized assay), not just by mass (mg). HGH, insulin, and hCG can vary in composition and activity from one preparation/batch to another, so IU provides a consistent, cross-manufacturer way to dose them.