Peptide Therapy: Immune Support
Thymosin alpha-1 (thymalfasin) is approved in a number of countries outside the US for hepatitis B; LL-37, KPV and thymic bioregulators remain research compounds without FDA approval.
Immune Support peptides by evidence
| Compound | FDA status | Evidence level | PubMed papers | Tagged trials |
|---|---|---|---|---|
| Thymalin | Not FDA-approved (used in Russia) | Clinical trials / approved abroad | 234 | 12 |
| Thymosin alpha-1 | Not FDA-approved (approved in some other countries) | Clinical trials / approved abroad | 59 | 11 |
| Thymogen | Not FDA-approved (used in Russia) | Clinical trials / approved abroad | 81 | 5 |
| VIP | Not approved (research only) | Preclinical or minimal | 8,400 | 110 |
| LL-37 | Not approved (research only) | Preclinical or minimal | 2,543 | 60 |
| TB-500 | Not approved (research only) | Preclinical or minimal | 602 | 3 |
| Bronchogen | Not approved (research only) | Preclinical or minimal | 7 | 0 |
| Chonluten | Not approved (research only) | Preclinical or minimal | 1 | 0 |
| Crystagen | Not approved (research only) | Preclinical or minimal | — | — |
| Vilon | Not approved (research only) | Preclinical or minimal | — | — |
Reconstitution math
TB-500 10 mg vial mathLL-37 5 mg vial mathCrystagen 20 mg vial mathChonluten 20 mg vial math
How people access immune support treatment
No compound in this category has an FDA-approved product, so any prescription is off-label or compounded, and "research peptide" vials are not approved for human use.
In our clinic directory, 1,417 verified clinics name a related service on their own websites: Peptide therapy 1,417. 779 of them mention telehealth. Most listings are in Texas (183), Florida (157), California (118), Tennessee (66), Arizona (64).
Telehealth and clinics
We have not verified a telehealth provider that lists immune support peptides item by item.
In person: browse verified peptide clinics by state. Compare options: best immune support peptides by evidence.