Calcitonin vs CJC-1295
Overview
Calcitonin is primarily a bone & joint peptide, while CJC-1295 is used for performance & growth.
This page compares Calcitonin 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
| Calcitonin | CJC-1295 | |
|---|---|---|
| Category | Bone & Joint | Performance & Growth |
| Regulatory status (US) | FDA approved | Research use only |
| Typical dosage | 100-200 IU | 1-2 mg |
| Frequency | daily | weekly |
| Reported benefits | Reduced bone loss, pain relief in bone diseases | Increased muscle mass, fat loss, improved recovery, better sleep, enhanced bone density |
| Reported side effects | Nasal irritation (spray form), nausea | Water retention, joint pain, potential insulin resistance with prolonged use |
Key differences
Primary use. Calcitonin is categorised under Bone & Joint, 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. Calcitonin: FDA-approved. CJC-1295: not FDA-approved; treated as a research compound.
Dosing. Calcitonin is typically dosed at 100-200 IU (daily). CJC-1295 is typically dosed at 1-2 mg (weekly).
Can you stack them?
Some protocols combine peptides, but stacking Calcitonin 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 Calcitonin and CJC-1295?
- Calcitonin is primarily a bone & joint peptide, while CJC-1295 is used for performance & growth. Calcitonin is FDA-approved for one or more indications, whereas CJC-1295 is not FDA-approved; generally classified as a research compound.
- What is Calcitonin used for?
- FDA-approved bone resorption inhibitor.
- What is CJC-1295 used for?
- Growth hormone, muscle mass, fat loss.
- Can you take Calcitonin and CJC-1295 together?
- Some users combine peptides within a single protocol, but stacking Calcitonin 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 Calcitonin or CJC-1295 FDA-approved?
- Calcitonin is FDA-approved for one or more indications. CJC-1295 is not FDA-approved; generally classified as a research compound.
Read the full articles
- Calcitonin — full monograph: mechanism, research, dosing & references
- CJC-1295 — full monograph: mechanism, research, dosing & references