Research tools
PeptideGraph
Precision dosing and pharmacokinetic curves for peptide research.
Peptide dosing & half-life tracking
PeptideGraph helps researchers calculate reconstitution volumes and visualize pharmacokinetic decay for compounds like BPC-157, Semaglutide, and Tirzepatide.
Why use a peptide calculator?
Reconstituting lyophilized peptides with bacteriostatic water requires precise math. The Dose Calculator converts mg or mcg into syringe units and milliliters, and shows where to draw on 30-, 50-, and 100-unit insulin syringes.
Understanding peptide half-life
Each peptide has a unique biological half-life. The Half-Life Tracker plots plasma concentration over time so you can compare dosing schedules and see how levels change between administrations.
Frequently asked questions
Common questions about peptide reconstitution math, syringe units, and half-life tracking.
What is a peptide dose calculator?
A peptide dose calculator helps determine the correct injection volume based on vial concentration and desired dose. It accounts for syringe size and provides visual guidance. PeptideGraph’s free dose calculator supports mg, mcg, and IU dosing, and works for any reconstituted peptide including BPC-157, Semaglutide, Ipamorelin, CJC-1295, and more.
How many units do I draw for 250mcg BPC-157 reconstituted with 3mL water?
For a 10mg BPC-157 vial reconstituted with 3mL bacteriostatic water, a 250mcg dose requires drawing to the 7.5-unit mark on a 100-unit syringe (0.075 mL). Use PeptideGraph’s Dose Calculator for any vial/dose combination.
What is the half-life of semaglutide?
Semaglutide has a half-life of approximately 7 days (168 hours), which is why it is dosed once weekly. PeptideGraph’s Half-Life Tracker can visualize its plasma concentration curve alongside other compounds.
How do I calculate peptide half-life decay?
Pharmacokinetic decay is calculated using the formula: C(t) = C0 × (0.5)^(t/half-life). PeptideGraph’s Half-Life Tracker applies this formula automatically, plotting plasma concentration over time for up to 6 compounds simultaneously.
What syringe sizes does the calculator support?
The calculator supports common insulin syringe sizes: 30-unit (0.3mL), 50-unit (0.5mL), and 100-unit (1.0mL) syringes.
Is PeptideGraph free to use?
Yes. PeptideGraph is completely free, requires no account or sign-up, and works on any device including mobile phones.
How much bacteriostatic water should I mix with my peptides?
The optimal amount of bacteriostatic water depends on your vial size and desired concentration, but 1mL to 3mL is generally recommended. Use our designated dose calculator to see exactly how your solvent volume changes the injection units on your syringe.