immune
Thymosin Alpha-1
Clinical immunomodulator
Cheapest offer
$3.85/mg
17 vendors tracked19 live pricesLast crawl: 2026-09-09 18:02 UTC
About
A 28-residue thymic peptide approved clinically (as thymalfasin) in many countries for hepatitis and cancer adjunct therapy. Modulates T-cell differentiation.
Also known as: Tα1, Thymalfasin
Reconstitution calculator
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For research purposes only. Not for human consumption. Always verify calculations independently.
Cost-per-dose recalculates as you adjust the calculator above.
Thymosin Alpha-1 · 5mg
4 vendors
B-
Watch$35.00
$7.00/mg· $1.75/dose
In stock◎ Best $/mg
Operational
$64.79
$12.96/mg· $3.24/dose
In stock▲ 85.1% vs best
Operational
$81.00
$16.20/mg· $4.05/dose
In stock▲ 131.4% vs best
Operational
$199.99
$40.00/mg· $10.00/dose
In stock▲ 471.4% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| Ameano Peptides US | B- | Watch | $35.00 ◎ Best $/mg | $7.00 | $1.75 | In stock | Buy with code → | |
| Research Peptides Europe EU | A | Operational | $64.79 ▲ 85.1% | $12.96 | $3.24 | In stock | Visit → | |
| Core Peptides US | A | Operational | $81.00 ▲ 131.4% | $16.20 | $4.05 | In stock | Visit → | |
| Nexus Peptides US | B | Operational | $199.99 ▲ 471.4% | $40.00 | $10.00 | In stock | Visit → |
Sort:
Last crawl 2026-09-09Sort:
2026-09-09Thymosin Alpha-1 · 10mg
15 vendors
Watch
$38.50
$3.85/mg· $0.96/dose
In stockOn sale
B
Operational$39.99
$4.00/mg· $1.00/dose
In stock▲ 3.9% vs best
Operational
$55.00
$5.50/mg· $1.38/dose
In stock▲ 42.9% vs best
B-
Operational$56.25
$5.63/mg· $1.41/dose
Out of stockOn sale▲ 46.1% vs best
B
Operational$58.00
$5.80/mg· $1.45/dose
In stock▲ 50.6% vs best
B-
Watch$62.00
$6.20/mg· $1.55/dose
In stock▲ 61.0% vs best
Operational
$63.99
$6.40/mg· $1.60/dose
In stock▲ 66.2% vs best
Operational
$64.99
$6.50/mg· $1.62/dose
In stock▲ 68.8% vs best
B-
Operational$65.00
$6.50/mg· $1.63/dose
In stock▲ 68.8% vs best
Watch
$65.00
$6.50/mg· $1.63/dose
In stock▲ 68.8% vs best
Operational
$71.00
$7.10/mg· $1.77/dose
In stockOn sale▲ 84.4% vs best
Operational
$83.99
$8.40/mg· $2.10/dose
In stock▲ 118.2% vs best
Operational
$102.59
$10.26/mg· $2.56/dose
In stock▲ 166.5% vs best
Operational
$129.97
$13.00/mg· $3.25/dose
In stock▲ 237.6% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| S1 Research (Step One Ventures) US | C | Watch | $38.50 On sale | $3.85 | $0.96 | In stock | Buy with code → | |
| Welli Labs US | B | Operational | $39.99 ▲ 3.9% | $4.00 | $1.00 | In stock | Visit → | |
| FITSKNS Research Group US | B- | Operational | $55.00 ▲ 42.9% | $5.50 | $1.38 | In stock | Visit → | |
| Southern Aminos US | B- | Operational | $56.25 On sale ▲ 46.1% | $5.63 | $1.41 | Out | Visit → | |
| EZ Peptides US | B | Operational | $58.00 ▲ 50.6% | $5.80 | $1.45 | In stock | Visit → | |
| Ameano Peptides US | B- | Watch | $62.00 ▲ 61.0% | $6.20 | $1.55 | In stock | Visit → | |
| Glacier Aminos US | B | Operational | $63.99 ▲ 66.2% | $6.40 | $1.60 | In stock | Visit → | |
| One Day Compounds US | B- | Operational | $64.99 ▲ 68.8% | $6.50 | $1.62 | In stock | Visit → | |
| Atomik Labz US | B- | Operational | $65.00 ▲ 68.8% | $6.50 | $1.63 | In stock | Visit → | |
| Solution Peptides US | B- | Watch | $65.00 ▲ 68.8% | $6.50 | $1.63 | In stock | Visit → | |
| Ascension Peptides US | B | Operational | $71.00 On sale ▲ 84.4% | $7.10 | $1.77 | In stock | Visit → | |
| Research Peptides US | B | Operational | $83.99 ▲ 118.2% | $8.40 | $2.10 | In stock | Visit → | |
| Peptira US | B | Operational | $89.00 ▲ 131.2% | $8.90 | $2.23 | In stock | Visit → | |
| Research Peptides Europe EU | A | Operational | $102.59 ▲ 166.5% | $10.26 | $2.56 | In stock | Visit → | |
| BioLongevity Labs US | B | Operational | $129.97 ▲ 237.6% | $13.00 | $3.25 | In stock | Visit → |
Sort:
Last crawl 2026-09-09Sort:
2026-09-09Research use only. The compounds listed on this page are not approved for human use through research-chemical channels. Nothing on this page is medical advice. Consult a qualified clinician before considering any peptide protocol. See affiliate disclosure and our scoring methodology.
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Vendors selling this peptide