Epithalon vs Ipamorelin
Overview
Epithalon is primarily a sleep & recovery peptide, while Ipamorelin is used for performance & growth.
This page compares Epithalon and Ipamorelin 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
| Epithalon | Ipamorelin | |
|---|---|---|
| Category | Sleep & Recovery | Performance & Growth |
| Regulatory status (US) | Compounding (Rx) — Apr 2026 | Research use only |
| Typical dosage | 5-10 mg | 200-300 mcg |
| Frequency | cycle protocol | twice-daily |
| Reported benefits | Improved sleep quality, circadian rhythm regulation, anti-aging | Natural GH release, improved body composition, better sleep, anti-aging effects, no appetite increase |
| Reported side effects | Minimal side effects during cycles | Very well-tolerated. Rare: headache, injection site reactions |
Key differences
Primary use. Epithalon is categorised under Sleep & Recovery, while Ipamorelin falls under Performance & Growth. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.
Regulatory status. Epithalon: not FDA-approved; compounding permitted with a prescription as of April 2026. Ipamorelin: not FDA-approved; treated as a research compound.
Dosing. Epithalon is typically dosed at 5-10 mg (cycle protocol). Ipamorelin is typically dosed at 200-300 mcg (twice-daily).
Can you stack them?
Some protocols combine peptides, but stacking Epithalon and Ipamorelin 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 Epithalon and Ipamorelin?
- Epithalon is primarily a sleep & recovery peptide, while Ipamorelin is used for performance & growth. Epithalon is not FDA-approved; compounding permitted with a prescription (as of April 2026), whereas Ipamorelin is not FDA-approved; generally classified as a research compound.
- What is Epithalon used for?
- Circadian rhythm regulator.
- What is Ipamorelin used for?
- GH secretagogue, anti-aging.
- Can you take Epithalon and Ipamorelin together?
- Some users combine peptides within a single protocol, but stacking Epithalon and Ipamorelin 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 Epithalon or Ipamorelin FDA-approved?
- Epithalon is not FDA-approved; compounding permitted with a prescription (as of April 2026). Ipamorelin is not FDA-approved; generally classified as a research compound.
Read the full articles
- Epithalon — full monograph: mechanism, research, dosing & references
- Ipamorelin — full monograph: mechanism, research, dosing & references