Bulevirtide vs CJC-1295
Overview
Bulevirtide is primarily a antiviral peptide, while CJC-1295 is used for performance & growth.
This page compares Bulevirtide and CJC-1295 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
| Bulevirtide | CJC-1295 | |
|---|---|---|
| Category | Antiviral | Performance & Growth |
| Regulatory status (US) | FDA approved | Research use only |
| Typical dosage | — | 1-2 mg |
| Frequency | — | weekly |
| Reported benefits | — | Increased muscle mass, fat loss, improved recovery, better sleep, enhanced bone density |
| Reported side effects | — | Water retention, joint pain, potential insulin resistance with prolonged use |
Key differences
Primary use. Bulevirtide is categorised under Antiviral, while CJC-1295 falls under Performance & Growth. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.
Regulatory status. Bulevirtide: FDA-approved. CJC-1295: not FDA-approved; treated as a research compound.
Dosing. Typical dosing for Bulevirtide is not catalogued. CJC-1295 is typically dosed at 1-2 mg (weekly).
Can you stack them?
Some protocols combine peptides, but stacking Bulevirtide and CJC-1295 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 Bulevirtide and CJC-1295?
- Bulevirtide is primarily a antiviral peptide, while CJC-1295 is used for performance & growth. Bulevirtide is FDA-approved for one or more indications, whereas CJC-1295 is not FDA-approved; generally classified as a research compound.
- What is Bulevirtide used for?
- First/only FDA-approved treatment for chronic hepatitis delta virus (HDV). FDA accelerated approval May 22, 2026. Brand: Hepcludex (Gilead).
- What is CJC-1295 used for?
- Growth hormone, muscle mass, fat loss.
- Can you take Bulevirtide and CJC-1295 together?
- Some users combine peptides within a single protocol, but stacking Bulevirtide and CJC-1295 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 Bulevirtide or CJC-1295 FDA-approved?
- Bulevirtide is FDA-approved for one or more indications. CJC-1295 is not FDA-approved; generally classified as a research compound.
Read the full articles
- Bulevirtide — full monograph: mechanism, research, dosing & references
- CJC-1295 — full monograph: mechanism, research, dosing & references