retatrutide and testosterone Injections: Do You Inject Into Fat How? – Bolt Pharmacy Retatrutide 20mg UK | Research

At the higher doses, results were very consistent: All participants lost at least 5% of their body weight Around 3 in 4 lost 15% or more With placebo, only around 1 in 4 lost 5% or more Phase 3 update (TRIUMPH-4, 68 weeks, topline results) In December 2025 , Eli Lilly shared early (topline) results from a larger phase 3 study (TRIUMPH-4)

Those basics keep injections from feeling like a temporary fix

According to the FDA, these compounded products may use different active ingredients or contain impurities that could be harmful

As co-author Tronieri noted, this does not confirm causation but suggests these reports are worth studying more systematically