Thymosin Alpha-1
Thymosin Alpha-1 (Tα1) is a 28-amino acid peptide naturally produced by the thymus gland.lated conditions, making it one of the better-validated peptides in this category.
Potency loss over time
Estimated potency retained (%) per storage condition. Hover the chart for details.
⚠ Modelled per compound from molecular structure — chain length, cyclisation, oxidation- and deamidation-prone residues and light sensitivity. Indicative only, not lab-measured per batch.
Time in body
How much of a single dose remains over time, modelled from the terminal half-life. Illustrative — not a dosing tool.
Half-life ~2.0 h (human PK) · effectively cleared (~97%) after ~10.0 h (5 half-lives).
Research context only — not dosing guidance. · Source: Thymalfasin PK (~2 h)
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 PUL
PULSE PEPTIDES
in stock 🇨🇾 CY
| €39.99 | €8.0/mg | 99% | ✔ HPLC/qNMR | Shop → | ||
| 2 |
 CRY
CRYSTAL PEPTIDES
in stock 🇧🇬 BG
| €43.99 | €8.8/mg | 99.7% | ✔ HPLC | Shop → | ||
| 3 |
 PAR
PARTICLE PEPTIDES
in stock 🇸🇰 SK
| €44.99 | €9.0/mg | ▼7.6% | 99% | ✔ HPLC/LC-MS | Shop → | |
| 4 |
 BEY
BEYOND PEPTIDES
in stock 🇪🇺 EU
| €46.78 | €9.36/mg | 99% | ✔ HPLC | Shop → | ||
| 5 |
 ADR
ADRIA SCIENCE
in stock 🇸🇮 SI
| €58.5 | €11.7/mg | 99% | ✔ HPLC | Shop → |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 PHD
| €30.19 | €5.03/mg | 99% | ✔ HPLC | Shop → |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 RET
RetaEU
in stock 🇳🇱 NL
| €59.95 | €6.0/mg | 99% | ✔ HPLC | Shop → | ||
| 2 |
 PRI
PRIMAL PEPTIDES
in stock 🇳🇱 NL
| €79.99 | €8.0/mg | ▲1.6% | 99% | ✔ COA | Shop → | |
| 3 |
 RES
RESEARCH PEPTIDES EUROPE
in stock 🇪🇸 ES
| €79.99 | €8.0/mg | 99.8% | ✔ HPLC/LC-MS | Shop → | ||
| 4 |
 24P
24PEPTIDES
in stock 🇳🇱 NL
| €99 | €9.9/mg | ▼1.0% | 99% | ✔ Liquilabs | Shop → |
Prices manually checked and updated monthly — source: publicly available supplier data. No affiliate links, no paid placement.
Thymosin Alpha-1
Mechanism, evidence level, EU status and COA guidance per compound. No dosages, no protocols — that belongs with a doctor.