All PeptidesLicensed Peptides2026-05-14T11:33:15-04:00 Need help
**[Tirzepatide](/products/tirzepatide-001)** Dual-agonist peptide injection with up to 22.5% weight loss
For example, a 31G needle is thinner than a 30G needle, and a 30G needle is thinner than a 29G needle
Griffith DA, Edmonds DJ, Fortin JP, Kalgutkar AS, Kuzmiski JB, Loria PM, et al
Retatrutide titration protocol Retatrutide follows a similar monthly escalation pattern, but with different starting points and targets: Weeks 1-4: 1mg once weekly (initiation) Weeks 5-8: 2mg once weekly Weeks 9-12: 4mg once weekly Weeks 13-16: 8mg once weekly Week 17+: 12mg once weekly (maintenance) The retatrutide starting dose is lower at 1mg, reflecting the triple agonist mechanism and the need for careful GI adjustment