MK-677vsRetatrutide
MK-677 vs Retatrutide — independent comparison of uses, administration, pricing across providers, and key differences. Last reviewed April 21, 2026.
Quick Verdict
Based on clinical evidence and real patient data
An oral growth hormone secretagogue that mimics the action of ghrelin, stimulating growth hormone release from the pituitary gland. Unlike injectable peptides, MK-677 is taken orally and has a long half-life.
A next-generation triple agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. Phase 3 clinical trials show weight loss exceeding tirzepatide, positioning it as the most potent anti-obesity peptide in development.
Best choice depends on your insurance, budget, and treatment history.Take the quiz to get a personalized recommendation.
MK-677 vs Retatrutide: At a Glance
Full comparison across all key factors.
| Factor | MK-677ALLY PICK | Retatrutide |
|---|---|---|
| Category | growth-hormone | weight-loss |
| Also Known As | Ibutamoren | LY3437943 |
| Administration | Oral capsule | Subcutaneous injection (weekly) |
| Prescription | Required | Required |
| Providers | 6 providers✓ Better | 3 providers |
| Common Uses |
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Data sourced from FDA prescribing information and peer-reviewed clinical trials. Prices reflect telehealth platform costs as of April 21, 2026. See our methodology.
Pricing by Provider
3 providers offer both MK-677 and Retatrutide.
| Provider | MK-677 | Retatrutide | Consultation | Lab Testing |
|---|---|---|---|---|
 | $120/monthly | $450/monthly | Video Telehealth | Yes |
 | $150/monthly | $480/monthly | Video Telehealth | Yes |
 | $180/monthly | $550/monthly | Video Telehealth | Yes |
 | $50/one-time | Not offered | Async Telehealth | No |
 | $149/monthly | Not offered | Async Telehealth | Yes |
 | $149/monthly | Not offered | Video Telehealth | Yes |
Key Differences
MK-677
More ProvidersAn oral growth hormone secretagogue that mimics the action of ghrelin, stimulating growth hormone release from the pituitary gland. Unlike injectable peptides, MK-677 is taken orally and has a long half-life.
Retatrutide
A next-generation triple agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. Phase 3 clinical trials show weight loss exceeding tirzepatide, positioning it as the most potent anti-obesity peptide in development.
Which Is Right for You?
Choose MK-677if…
- You want a growth-hormone medication
- You prefer oral capsule administration
- You want more provider options (6 available)
- Your primary goal is growth hormone elevation
- Your primary goal is improved sleep quality
Choose Retatrutideif…
- You want a weight-loss medication
- You prefer subcutaneous injection (weekly) administration
- 3 providers available on our platform
- Your primary goal is weight loss
- Your primary goal is metabolic health
Frequently Asked Questions
What is the difference between MK-677 and Retatrutide?
Which is cheaper, MK-677 or Retatrutide?
Can I switch from MK-677 to Retatrutide?
Medical Disclaimer
This comparison is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider before starting, stopping, or changing any medication. Individual results may vary. The information presented reflects publicly available data and may not account for your specific health situation.
Related Guides
MK-677 (Ibutamoren) Telehealth Guide 2026: Providers, Costs & Safety
Read guide →Read guide →Retatrutide: The Triple-Agonist GLP-1 That Could Change Everything
Complete guide to retatrutide — Eli Lilly's triple-agonist (GLP-1/GIP/glucagon) with 28.7% weight loss in trials. Clinical data, how it compares, and when it might be available.
Read guide →Retatrutide Cost: What Will Eli Lilly's Triple-Agonist Cost When It Launches?
No official pricing exists for retatrutide — it hasn't been FDA-approved. Based on Lilly's existing portfolio, expect a list price of $1,000-1,500/mo with LillyDirect pricing potentially reducing that to $299-449/mo. Here's what we know, what we can project, and how to prepare.
Read guide →