Amino USAProduct page includes use or preparation wordingIn stock
Thymosin alpha-1 · 5 mg × 1 vial
$60.00$12.00 / mg
Checked · 5 days ago
Lab report: Not linked
View product details (opens in a new tab)No commercial relationship
Research listings · Peptides
Thymosin alpha-1 research listings: prices and suppliers
Research materials and consumer products belong to different categories. A listing, laboratory report, or research-use label does not establish suitability for personal use.
We have no commercial relationship with suppliers on this page. Offers are sorted by price per mg; commission never changes the order.
Prices observed weekly · last check · How we check prices →
Lowest current at 5 mg × 1 vial$12.00 / mg · $60.00Amino USA · checked 5 days ago
Listings at 5 mg × 1 vial
| Supplier link | |||||||
|---|---|---|---|---|---|---|---|
| Amino USAProduct page includes use or preparation wording | 5 mg × 1 vial | $60.00 | $12.00 / mg | In stock | 5 d ago | Not linked | View product details (opens in a new tab)No commercial relationship |
| Swiss ChemsProduct page includes use or preparation wording | 5 mg × 1 vial | $63.99 | $12.80 / mg | In stock | 5 d ago | Not linked | View product details (opens in a new tab)No commercial relationship |
| Core PeptidesProduct page includes use or preparation wording | 5 mg × 1 vial | $81.00 | $16.20 / mg | In stock | 5 d ago | Not linked | View product details (opens in a new tab)No commercial relationship |
- Swiss ChemsProduct page includes use or preparation wordingIn stock
Thymosin alpha-1 · 5 mg × 1 vial
$63.99$12.80 / mg
Checked · 5 days ago
Lab report: Not linked
View product details (opens in a new tab)No commercial relationship - Core PeptidesProduct page includes use or preparation wordingIn stock
Thymosin alpha-1 · 5 mg × 1 vial
$81.00$16.20 / mg
Checked · 5 days ago
Lab report: Not linked
View product details (opens in a new tab)No commercial relationship
- Prices exclude shipping. A matching name does not verify the contents of a lot.
- Lab reports are vendor-reported, not independently authenticated. “Lab confirmed” means the issuing laboratory confirmed the report is theirs.
- Some suppliers’ product pages include use or preparation wording. We list their prices for comparison only; we do not endorse that wording, and nothing on this site is guidance on preparing or using these materials.
By size
Every package size we track for Thymosin alpha-1. Current means seen in the last 8 days.
| 5 mg × 1 vial | $60.00 | $12.00 / mg | 3 / 3 | 3 |
|---|---|---|---|---|
| 10 mg × 1 vial | $60.00 | $6.00 / mg | 8 / 8 | 8 |
| 10 mg × 10 vials | $879.00 | $8.79 / mg | 1 / 1 | 1 |
| 500 mcg × 1 capsule | $100.00 | — | 1 / 1 | 1 |
Research context
From our own records, with the date each was last checked.
- FDA approval
- No approved drug product with this ingredient listed in Drugs@FDA (searched as thymalfasin and thymosin; data updated 2026-11-02)Checked
- 503A / 503B compounding
- Formerly 503A category 2; nominations withdrawn. Not in any 503A category on FDA's 2026-05-14 list; in 503B category 3 on FDA's 2025-03-21 listChecked
- Advisory committee (PCAC)
- PCAC voted 4 yes, 17 no on placing thymosin alpha-1 (free base) on the 503A list, and the same on thymosin alpha-1 acetateChecked
- Rulemaking / enforcement
- No proposed or final rule found in the Federal Register (search on 2026-11-03); the only match is FDA's 2024 PCAC meeting noticeChecked
- Identity
- Formula C129H215N33O55 · MW 3108.3 g/mol · CAS 62304-98-7Sequence Ac-SDAAVDTSSEITTKDLKEKKEVVEEAENSource record Checked
Identity noteA different molecule from thymosin beta-4 and from products sold as TB-500.
How we check prices · Offers are matched to our catalogue by an editor before they appear; a listing is not an endorsement.