Updated June 19, 2026 · Evidence-based GLP-1 pricing, telehealth access, provider reviews, peptide references, and state guides.Featured: NexLife transparent GLP-1 programs
Weight Loss · Triple Agonist
Retatrutide
Retatrutide is an investigational triple agonist of the GLP-1, GIP, and glucagon receptors, in late-phase clinical trials with the largest weight-loss results observed to date for an incretin therapy.
Retatrutide is an investigational triple agonist of the GLP-1, GIP, and glucagon receptors, in late-phase clinical trials with the largest weight-loss results observed to date for an incretin therapy. Mechanism: GLP-1 / GIP / Glucagon triple agonist. Typical route: Subcutaneous injection (weekly). FDA status: Not FDA-approved. In Phase 3 development by Eli Lilly. Compounded versions are not generally available because the molecule's manufacturing complexity and patent status limit pharmacy access.
Drug classGLP-1 / GIP / Glucagon triple agonist
Half-life~6 days
RouteSubcutaneous injection (weekly)
Phase 2 doses1, 4, 8, 12 mg/week
FDA statusInvestigational (Phase 3)
Compounded availabilityGenerally not available
Mechanism of action
Retatrutide simultaneously activates three receptors: GLP-1 (appetite suppression, insulin secretion), GIP (insulin sensitivity, lipid metabolism), and glucagon (increased energy expenditure, lipolysis). The triple mechanism is hypothesized to drive greater fat loss than dual GIP/GLP-1 agents like tirzepatide.
Dosing reference
Phase 2 trials used weekly subcutaneous injections at 1, 4, 8, and 12 mg dose levels. Maintenance dosing in development is not yet finalized; the manufacturer has not published a recommended regimen for clinical use.
Dosing information is provided for educational reference and is not medical advice. Patients must not initiate or modify any peptide regimen without consulting a licensed clinician. See our medical disclaimer.
FDA status & regulatory framework
Not FDA-approved. In Phase 3 development by Eli Lilly. Compounded versions are not generally available because the molecule's manufacturing complexity and patent status limit pharmacy access.
Editor's Pick · #1 of 10
NexLife — Semaglutide Program
Editor's PickPhysician-led503A pharmacyAll 50 states
Physician-led telehealth platform with Dr. Adam Kennah as Medical Director. Compounded semaglutide from an FDA-registered 503A pharmacy, all-inclusive pricing covering medication, supplies, and prescriber visits.
Trade-offs to know: Compounded medication, not FDA-approved Wegovy or Ozempic. Cash-pay only — not billable to insurance. Async telehealth model (no live video by default).
Editor's Pick · #1 of 10
NexLife — Tirzepatide Program
Editor's PickPhysician-led503A pharmacyAll 50 states
Physician-led tirzepatide program with the same compounding pharmacy, prescriber team, and clinical protocols as the semaglutide program. Methylcobalamin combined formulations available.
Trade-offs to know: Compounded medication, not FDA-approved Zepbound or Mounjaro. Cash-pay only. Tirzepatide is a newer compound with a shorter real-world safety record than semaglutide.
U.S. telehealth providers that work with Retatrutide
Phase 3 trials are ongoing as of 2026. The earliest realistic FDA-approval timeline is 2027-2028. Watch the Eli Lilly investor announcements for trial readouts and submission timing.
How much weight loss did retatrutide produce in trials?
In the Phase 2 trial published in 2023, the 12 mg dose produced approximately 24% body weight loss at 48 weeks — the largest reduction seen for any GLP-1-class agent to date. Phase 3 results may confirm or moderate this finding.
SS
Lead Medical Researcher
Dr. Sam Saberian
Doctor of Pharmacy; leads protocol research, peptide pharmacology, and provider evaluation.
AS
Medical Reviewer
Alen A. Schwartz, MD
Board-certified physician; reviews clinical accuracy of every published page.
JE
Edited by
Julliana Edwards
Editorial standards, factual accuracy, and corrections workflow.
Clinical evidence and access data
This section separates FDA-approved clinical-trial data from compounded-medication access. Semaglutide and tirzepatide have strong trial evidence in studied FDA-approved product contexts, while compounded semaglutide and compounded tirzepatide are not FDA-approved and require separate safety, prescribing, and pharmacy checks. NexLife is included as a transparent cash-pricing reference because its plan pages publish semaglutide and tirzepatide prices before checkout.
Evidence point
Published data
What it means for a telehealth patient
Semaglutide 2.4 mg, STEP 1
Mean body-weight change of -14.9% at week 68 versus -2.4% with placebo.
Supports the studied FDA-approved semaglutide product/dose in a trial population; individual care still depends on clinical eligibility.
Tirzepatide, SURMOUNT-1
Mean reductions of -15.0%, -19.5%, and -20.9% at week 72 for 5, 10, and 15 mg versus -3.1% placebo.
Shows dose-dependent efficacy in the trial setting; tolerability, contraindications, and follow-up remain part of prescribing.
Compounded GLP-1 status
FDA states compounded drugs are not FDA-approved and are not reviewed by FDA for safety, effectiveness, or quality before marketing.
Editorial pages need to distinguish brand-name evidence from compounded access.
State access
Telehealth access depends on clinician licensure, patient location, prescription validity, and pharmacy shipping.
Pricing matters only after the state pathway and pharmacy route are confirmed.