Retatrutide 15mg (GLP-3 R)
Extended supply retatrutide — best value for triple agonist dosing protocols.
14.9%
Avg body weight reduction
68wk
STEP-1 trial duration
FDA
Reviewed mechanism
Retatrutide 15mg — larger supply vial for extended triple GIP/GLP-1/Glucagon protocols. Best per-mg economics for retatrutide protocols beyond the starter phase.
Best Per-Mg Value
Lowest per-mg price for retatrutide — ideal for those beyond the initial escalation phase.
15mg Supply
Covers multiple weeks at typical Phase 2-equivalent doses.
Triple Agonist
Same GIP + GLP-1 + Glucagon mechanism as 10mg vial — 24.2% weight loss in Phase 2.
Retatrutide (GLP-3 R) 15mg: Extended Protocol Guide
Mechanism · Evidence · Application
The Retatrutide 15mg vial provides extended supply for those moving beyond the initial dose-escalation phase into sustained 8–12mg/week maintenance dosing. At 8mg/week, a 15mg vial provides approximately 2 weeks of supply; at 4mg/week (common mid-escalation dose), it covers ~4 weeks.
Retatrutide in Context
Following the landmark NEJM Phase 2 publication showing 24.2% weight loss, retatrutide has become one of the most in-demand peptides in the metabolic category. The 15mg vial is positioned for those who have completed initial dose-escalation and are maintaining dosing protocols at higher doses.
For complete mechanism, clinical data, and escalation protocols, see the Retatrutide 10mg product page.
Metabolic & Weight Loss Results
Best per-mg value for retatrutide protocols
Covers 2–4 weeks at mid-to-high escalation doses
Same batch-tested quality as 10mg vial
Ideal for those beyond the starter escalation phase
Weight Loss Protocol Guide
Retatrutide 15mg (GLP-3 R) Protocol Guide
Same as Retatrutide 10mg. 15mg vial provides:
· ~4 weeks at 4mg/week
· ~2.5 weeks at 6mg/week
· ~2 weeks at 8mg/week
· ~1.3 weeks at 12mg/week
Retatrutide 15mg (GLP-3 R)
Apollo Peptides Sciences
$189.99
Buy from ApolloAffiliate link · supports PeptidesClav
Body Composition
Extended supply retatrutide — best value for triple agonist dosing protocols.
Quality Assurance
HPLC Testing
Purity verified per batch
Mass Spectrometry
Molecular identity confirmed
Certificate of Analysis
Publicly available
US-Based Supplier
Apollo Peptides Sciences
Synergistic Combinations
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Source from Apollo Peptides Sciences — HPLC-tested, mass-spectrometry verified, with a Certificate of Analysis per batch.
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