Liraglutide vs LL-37

A side-by-side comparison from PeptideSciences101, the open peptide reference.

Overview

Liraglutide is primarily a weight management & metabolic peptide, while LL-37 is used for immune support.

This page compares Liraglutide and LL-37 across their primary use, typical dosing, reported benefits and side effects, and U.S. regulatory status. For the full monograph on either compound — mechanism of action, clinical research, and references — follow the article links.

Side-by-side comparison

LiraglutideLL-37
CategoryWeight Management & MetabolicImmune Support
Regulatory status (US)FDA approvedCompounding (Rx) — Apr 2026
Typical dosage0.6-3.0 mg2-5 mg
Frequencydailytwice weekly
Reported benefitsWeight loss, blood sugar control, cardiovascular protectionAntimicrobial activity, immune modulation, wound healing, anti-inflammatory
Reported side effectsNausea, GI disturbances, potential pancreatitisGenerally safe, minimal side effects

Key differences

Primary use. Liraglutide is categorised under Weight Management & Metabolic, while LL-37 falls under Immune Support. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.

Regulatory status. Liraglutide: FDA-approved. LL-37: not FDA-approved; compounding permitted with a prescription as of April 2026.

Dosing. Liraglutide is typically dosed at 0.6-3.0 mg (daily). LL-37 is typically dosed at 2-5 mg (twice weekly).

Can you stack them?

Some protocols combine peptides, but stacking Liraglutide and LL-37 has not been validated for safety or efficacy in controlled trials. Combining compounds can change their effects and risks. Nothing here is medical advice — consult a qualified healthcare provider before starting or combining any protocol.

Frequently asked questions

What is the difference between Liraglutide and LL-37?
Liraglutide is primarily a weight management & metabolic peptide, while LL-37 is used for immune support. Liraglutide is FDA-approved for one or more indications, whereas LL-37 is not FDA-approved; compounding permitted with a prescription (as of April 2026).
What is Liraglutide used for?
FDA-approved GLP-1 for weight loss.
What is LL-37 used for?
Antimicrobial defense peptide.
Can you take Liraglutide and LL-37 together?
Some users combine peptides within a single protocol, but stacking Liraglutide and LL-37 has not been established as safe or effective in controlled trials. Neither this comparison nor PeptideSciences101 is medical advice — consult a qualified healthcare provider before combining any compounds.
Is Liraglutide or LL-37 FDA-approved?
Liraglutide is FDA-approved for one or more indications. LL-37 is not FDA-approved; compounding permitted with a prescription (as of April 2026).

Read the full articles

  • Liraglutide — full monograph: mechanism, research, dosing & references
  • LL-37 — full monograph: mechanism, research, dosing & references

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