Retatrutide vs Tirzepatide

Retatrutide wins for maximal fat loss, visceral and hepatic fat reduction, and increased energy expenditure via glucagon agonism—making it the new ceiling for pure percentage of fat lost per month. Its triple action hits deeper metabolic pathways than tirzepatide and appears to keep weight dropping for longer without plateau.

Tirzepatide wins for side-effect profile, mature community data, and ease of titration—thanks to more predictable GI side effects and a longer track record at physique-focused dosing. It's easier to source, less likely to overshoot into excessive muscle loss, and generally more tolerable week to week.

Pick Retatrutide if:

• You're chasing the absolute lowest achievable bodyfat—including hard-to-budge visceral and liver fat
• You want the most potent fat loss tool, even if you're already losing on GLP-1/GIP agonists
• You're advanced: already experienced with GLP-1 and GIP agonists, looking for the next step up
• You're running or recovering from heavy oral cycles with rapid visceral fat gain
• You don't mind managing enhanced side effects (transient HR/spikes, more aggressive titration)

Pick Tirzepatide if:

• You want a strong but more proven/familiar fat loss protocol
• You're prioritizing ease of side effect management or are prone to GI issues
• You value large-scale safety data and a longer community track record
• You plan to run lower doses for sustained appetite/government rather than aggressive max loss
• You're new to incretin agonists or are conservative about muscle preservation on a cut