SelankvsThymosin Alpha-1
Selank vs Thymosin Alpha-1 — 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 synthetic peptide derived from the naturally occurring immunomodulatory peptide tuftsin. Developed as an anxiolytic with nootropic properties, it modulates GABA and serotonin systems without sedation.
A naturally occurring peptide first isolated from the thymus gland. FDA-orphan-drug designated, it enhances immune function by stimulating T-cell maturation and modulating cytokine production.
Best choice depends on your insurance, budget, and treatment history.Take the quiz to get a personalized recommendation.
Selank vs Thymosin Alpha-1: At a Glance
Full comparison across all key factors.
| Factor | SelankALLY PICK | Thymosin Alpha-1 |
|---|---|---|
| Category | cognitive | anti-aging |
| Also Known As | TP-7 | Ta1, Zadaxin |
| Administration | Intranasal spray | Subcutaneous injection |
| Prescription | Required | Required |
| Providers | 4 providers✓ Better | 3 providers |
| 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
3 providers offer both Selank and Thymosin Alpha-1.
| Provider | Selank | Thymosin Alpha-1 | Consultation | Lab Testing |
|---|---|---|---|---|
 | $120/monthly | $220/monthly | Video Telehealth | Yes |
 | $140/monthly | $240/monthly | Video Telehealth | Yes |
 | $160/monthly | $280/monthly | Video Telehealth | Yes |
 | $45/one-time | Not offered | Async Telehealth | No |
Key Differences
Selank
More ProvidersA synthetic peptide derived from the naturally occurring immunomodulatory peptide tuftsin. Developed as an anxiolytic with nootropic properties, it modulates GABA and serotonin systems without sedation.
Thymosin Alpha-1
A naturally occurring peptide first isolated from the thymus gland. FDA-orphan-drug designated, it enhances immune function by stimulating T-cell maturation and modulating cytokine production.
Which Is Right for You?
Choose Selankif…
- You want a cognitive medication
- You prefer intranasal spray administration
- You want more provider options (4 available)
- Your primary goal is anxiety reduction
- Your primary goal is cognitive enhancement
Choose Thymosin Alpha-1if…
- You want a anti-aging medication
- You prefer subcutaneous injection administration
- 3 providers available on our platform
- Your primary goal is immune system support
- Your primary goal is chronic infection management
Frequently Asked Questions
What is the difference between Selank and Thymosin Alpha-1?
Which is cheaper, Selank or Thymosin Alpha-1?
Can I switch from Selank to Thymosin Alpha-1?
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.