Dr.MetabolicMD said:

Bacteriostatic water quality matters for dosing arithmetic reconstitution.

Compounding pharmacy dose accuracy check for dosing arithmetic: I always verify my first dose from a new vial by weighing it on a milligram scale. Draw up your dose, weigh the syringe, subtract empty syringe weight, compare to expected water weight at that volume.

For a 10-unit dose (0.1mL): expected weight ~100mg of water. If it's significantly off, your syringe may be inaccurate. Cheap insulin syringes can have ±5% volume accuracy. Spring for quality brands like BD or Terumo.

Dr.MetabolicMD said:

Bacteriostatic water quality matters for dosing arithmetic reconstitution.

For anyone reconstituting dosing arithmetic peptides: the water-to-powder ratio determines your concentration. Here's my reference:

More water = easier to measure small doses but vial runs out faster. Find the balance that works for your dose.

One thing that is still open after Dr.MetabolicMD’s answer:

How long did you give it before you decided it was working?

Dr.AddMedPHL said:

For anyone reconstituting dosing arithmetic peptides: the water-to-powder ratio determines your concentration.

Comparison of compounded dosing arithmetic delivery formats I've tried:

I use lyophilized vials for cost and stability. The reconstitution takes 30 seconds once you've done it a few times.

Dr.AddMedPHL said:

For anyone reconstituting dosing arithmetic peptides: the water-to-powder ratio determines your concentration.

Correct, and worth adding that it is reversible. Nothing being described here is a one-way door, which changes how cautious it is reasonable to be.