How It Works
Tirzepatide is a dual-action peptide that activates both GLP-1 and GIP (glucose-dependent insulinotropic polypeptide) receptors. This dual mechanism enhances insulin sensitivity, reduces appetite, and promotes fat oxidation more effectively than single-receptor agonists. The GIP pathway adds complementary metabolic benefits.
Common Research Protocols
Research Dosing Range
Start at 2.5 mg once weekly for 4 weeks, then titrate to 5 mg weekly. Further increases in 2.5 mg increments every 4 weeks as tolerated up to 10–15 mg weekly. Slow titration is essential. Administer subcutaneously in abdomen, thigh, or upper arm.
Use our free dosing calculator to determine exact syringe units after reconstitution.
Reconstitution Guide
Follow these steps to properly reconstitute GLP-2 (Tirzepatide) for research use:
- Step 1: Swab the tops of both the peptide vial and bacteriostatic water vial with alcohol.
- Step 2: Draw your desired amount of BAC water (commonly 1–2 mL) into an insulin syringe.
- Step 3: Inject the water slowly into the peptide vial, aiming at the glass wall — not directly onto the powder.
- Step 4: Swirl the vial gently until fully dissolved — never shake.
- Step 5: Refrigerate at 36–46°F (2–8°C). Use within 4–6 weeks.
Use the dosing calculator to calculate your exact concentration (mcg per unit) and how many units to draw on your syringe.
Frequently Asked Questions
How does GLP-2 (Tirzepatide) work? ▾
Tirzepatide is a dual-action peptide that activates both GLP-1 and GIP (glucose-dependent insulinotropic polypeptide) receptors. This dual mechanism enhances insulin sensitivity, reduces appetite, and promotes fat oxidation more effectively than single-receptor agonists. The GIP pathway adds complementary metabolic benefits.
What are the key research findings? ▾
- FDA-approved for type 2 diabetes (Mounjaro) and weight management (Zepbound)
- SURMOUNT trials showed up to 22.5% body weight reduction
- Superior glycemic control compared to single GLP-1 agonists in head-to-head trials
- Research exploring benefits for NASH, sleep apnea, and cardiovascular outcomes
What is the typical dosing protocol? ▾
Start at 2.5 mg once weekly for 4 weeks, then titrate to 5 mg weekly. Further increases in 2.5 mg increments every 4 weeks as tolerated up to 10–15 mg weekly. Slow titration is essential. Administer subcutaneously in abdomen, thigh, or upper arm.
How should GLP-2 (Tirzepatide) be stored? ▾
Unreconstituted powder should be stored in a freezer or refrigerator away from light and moisture. Once reconstituted with bacteriostatic water, refrigerate at 36–46°F (2–8°C) and use within 4–6 weeks. Never freeze reconstituted peptides.