Peptide Reconstitution & Insulin Syringe Quick Guide
These are the 3 main sizes used for peptides/insulin:
- 0.3 mL syringe → holds up to 30 units
- 0.5 mL syringe → holds up to 50 units
- 1 mL syringe → holds up to 100 units
Key Conversion Units ↔ Volume (U-100 Syringes)
Memorize this: 0.1 mL = 10 units (100 units = 1 mL total)
- 5 units = 0.05 mL
- 10 units = 0.1 mL
- 20 units = 0.2 mL
- 30 units = 0.3 mL
- 40 units = 0.4 mL
- 50 units = 0.5 mL
- 100 units = 1.00mL
mg vs mcg – Avoid This Common Mistake!
mg = milligrams
mcg (ug) = micrograms (often labeled as IU in peptide contexts)
1 mg = 1,000 mcg
Quick conversions:
- 500 mcg = 0.5 mg
- 1,000 mcg = 1 mg
- 2,000 mcg = 2 mg
- 5,000 mcg = 5 mg
- 10,000 mcg = 10 mg
Rule
To change mg → mcg, multiply by 1,000 (Most peptide doses & calculators use mcg, not mg)
Reconstitution Basics – The Two Numbers That Matter
- mg = amount of peptide
powder in the vial (e.g., 5 mg
vial)
- mL = volume of bacteriostatic
water you add (e.g., 2 mL)
These determine concentration.
Regards
Kim & Linda
