LL-37vsRetatrutide
LL-37 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
The only known human cathelicidin antimicrobial peptide, naturally produced by immune cells and epithelial tissues. LL-37 has broad-spectrum antimicrobial activity alongside potent immunomodulatory and wound-healing properties.
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.
LL-37 vs Retatrutide: At a Glance
Full comparison across all key factors.
| Factor | LL-37 | Retatrutide |
|---|---|---|
| Category | recovery | weight-loss |
| Also Known As | Cathelicidin, hCAP18/LL-37 | LY3437943 |
| Administration | Topical or subcutaneous injection | Subcutaneous injection (weekly) |
| Prescription | Required | Required |
| Providers | 3 providers | 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
2 providers offer both LL-37 and Retatrutide.
| Provider | LL-37 | Retatrutide | Consultation | Lab Testing |
|---|---|---|---|---|
 | $180/monthly | $450/monthly | Video Telehealth | Yes |
 | $240/monthly | $550/monthly | Video Telehealth | Yes |
 | $50/one-time | Not offered | Async Telehealth | No |
 | Not offered | $480/monthly | Video Telehealth | Yes |
Key Differences
LL-37
The only known human cathelicidin antimicrobial peptide, naturally produced by immune cells and epithelial tissues. LL-37 has broad-spectrum antimicrobial activity alongside potent immunomodulatory and wound-healing properties.
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 LL-37if…
- You want a recovery medication
- You prefer topical or subcutaneous injection administration
- 3 providers available on our platform
- Your primary goal is antimicrobial defense
- Your primary goal is chronic wound healing
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 LL-37 and Retatrutide?
Which is cheaper, LL-37 or Retatrutide?
Can I switch from LL-37 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.
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