MOTS-cvsP21
MOTS-c vs P21 — 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
A mitochondria-derived peptide encoded within the mitochondrial genome. MOTS-c regulates metabolic homeostasis, enhances insulin sensitivity, and has shown promise in extending healthspan in animal studies. Levels naturally decline with age.
A 21-amino-acid peptide that mimics the action of ciliary neurotrophic factor (CNTF). Studied for neurogenesis, cognitive improvement, and neuroprotection. Shows promise in animal models for enhancing memory consolidation and protecting against neurodegenerative decline.
Best choice depends on your insurance, budget, and treatment history.Take the quiz to get a personalized recommendation.
MOTS-c vs P21: At a Glance
Full comparison across all key factors.
| Factor | MOTS-c | P21ALLY PICK |
|---|---|---|
| Category | anti-aging | cognitive |
| Also Known As | Mitochondrial Open Reading Frame of the 12S rRNA-c | CNTF analog, Colostrinin fragment |
| Administration | Subcutaneous injection | Intranasal spray |
| Prescription | Required | Required |
| Providers | 2 providers | 3 providers✓ Better |
| 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 MOTS-c and P21.
| Provider | MOTS-c | P21 | Consultation | Lab Testing |
|---|---|---|---|---|
 | $220/monthly | $180/monthly | Video Telehealth | Yes |
 | $280/monthly | $230/monthly | Video Telehealth | Yes |
 | Not offered | $55/one-time | Async Telehealth | No |
Key Differences
MOTS-c
A mitochondria-derived peptide encoded within the mitochondrial genome. MOTS-c regulates metabolic homeostasis, enhances insulin sensitivity, and has shown promise in extending healthspan in animal studies. Levels naturally decline with age.
P21
More ProvidersA 21-amino-acid peptide that mimics the action of ciliary neurotrophic factor (CNTF). Studied for neurogenesis, cognitive improvement, and neuroprotection. Shows promise in animal models for enhancing memory consolidation and protecting against neurodegenerative decline.
Which Is Right for You?
Choose MOTS-cif…
- You want a anti-aging medication
- You prefer subcutaneous injection administration
- 2 providers available on our platform
- Your primary goal is metabolic health
- Your primary goal is insulin sensitivity
Choose P21if…
- You want a cognitive medication
- You prefer intranasal spray administration
- You want more provider options (3 available)
- Your primary goal is neurogenesis
- Your primary goal is memory consolidation
Frequently Asked Questions
What is the difference between MOTS-c and P21?
Which is cheaper, MOTS-c or P21?
Can I switch from MOTS-c to P21?
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.