Question 1

How do I reconstitute peptides?

Accepted Answer

Add bacteriostatic water slowly to the vial, aiming the stream at the glass wall rather than directly at the powder. Gently swirl (never shake) until fully dissolved. The amount of water determines your concentration.

Question 2

What does units to inject mean?

Accepted Answer

Units refer to the markings on an insulin syringe. A 100-unit syringe holds 1mL total, so each unit equals 0.01mL. When the calculator shows inject 10 units, you draw the syringe to the 10 mark.

Question 3

How long do reconstituted peptides last?

Accepted Answer

Most reconstituted peptides last 3-4 weeks when refrigerated at 36-46 degrees F (2-8 degrees C). Some peptides like Semaglutide and Tirzepatide can last 6-8 weeks. Never freeze reconstituted peptides.

Question 4

Why does reconstitution volume matter?

Accepted Answer

The amount of water you add determines your concentration. More water equals lower concentration and larger injection volume. Less water equals higher concentration and smaller injection volume.

Question 5

Is this peptide calculator for medical use?

Accepted Answer

No. This calculator is for educational and research purposes only. Peptides are research chemicals not approved for human use by the FDA. Always consult with a qualified healthcare provider.