Side-by-side comparison
Tirzepatide
GIP/GLP-1 PeptideSafety 8/10Metabolic / weight research
vs
Retatrutide
Triple-Action Metabolic CompoundSafety 7/10GLP-1 / metabolic research
Tirzepatide
Retatrutide
Cheapest price
$6.75 /5mg
$26.77 /10mg
Vendors stocking
13
20
Safety rating
8/10
7/10
Mol. weight
4,813.45 g/mol
4,731 g/mol
Administration
Subcutaneous injection
Subcutaneous injection
Price Comparison — 2026
Tirzepatide
VendorPrice
Retatrutide
VendorPrice
Vendors Carrying Both
13 vendors stock both Tirzepatide and Retatrutide — convenient if you want to bundle an order.
Safety Notes
Tirzepatide
FDA: FDA-approved (Mounjaro/Zepbound)
Extensive Phase III data; GI side effects manageable; thyroid warning animal-only; strong efficacy
Retatrutide
FDA: Not FDA-approved (Phase III)
Phase II showed strong efficacy/tolerability; GI side effects; novel mechanism; promising safety data
Explore Further
Tirzepatide
Retatrutide