BPC-157 $2.60/mg @ S1 Research TESAMORELIN $5.00/mg @ Tegridy-Research MOTS-C $1.70/mg @ S1 Research TB-500 $3.80/mg @ Tegridy-Research SELANK $2.70/mg @ Tegridy-Research IPAMORELIN $3.20/mg @ Tegridy-Research SEMAX $2.12/mg @ Biotech Peptides PT-141 $3.00/mg @ S1 Research CJC-1295 $4.90/mg @ Valor Peptides EPITHALON $1.50/mg @ Tegridy-Research DSIP $3.20/mg @ Tegridy-Research AOD-9604 $7.00/mg @ Tegridy-Research MELANOTAN II $2.80/mg @ Modern Research Peptides RETATRUTIDE $5.97/mg @ Peptira THYMOSIN ALPHA-1 $4.50/mg @ Tegridy-Research TIRZEPATIDE $3.32/mg @ Peptira GHK-CU $0.70/mg @ EZ Peptides KISSPEPTIN $4.00/mg @ Modern Research Peptides CAGRILINTIDE $6.60/mg @ Modern Research Peptides SEMAGLUTIDE $5.95/mg @ Peptira IGF-1 LR3 $48.00/mg @ S1 Research BPC-157 $2.60/mg @ S1 Research TESAMORELIN $5.00/mg @ Tegridy-Research MOTS-C $1.70/mg @ S1 Research TB-500 $3.80/mg @ Tegridy-Research SELANK $2.70/mg @ Tegridy-Research IPAMORELIN $3.20/mg @ Tegridy-Research SEMAX $2.12/mg @ Biotech Peptides PT-141 $3.00/mg @ S1 Research CJC-1295 $4.90/mg @ Valor Peptides EPITHALON $1.50/mg @ Tegridy-Research DSIP $3.20/mg @ Tegridy-Research AOD-9604 $7.00/mg @ Tegridy-Research MELANOTAN II $2.80/mg @ Modern Research Peptides RETATRUTIDE $5.97/mg @ Peptira THYMOSIN ALPHA-1 $4.50/mg @ Tegridy-Research TIRZEPATIDE $3.32/mg @ Peptira GHK-CU $0.70/mg @ EZ Peptides KISSPEPTIN $4.00/mg @ Modern Research Peptides CAGRILINTIDE $6.60/mg @ Modern Research Peptides SEMAGLUTIDE $5.95/mg @ Peptira IGF-1 LR3 $48.00/mg @ S1 Research
pepmg_ The transparent price-per-mg index for research peptides.

compounds / thymosin-alpha-1

THYMOSIN ALPHA-1Immune peptide

Thymosin Alpha-1 price comparison

Thymosin Alpha-1 (Tα1) is a 28-amino-acid synthetic peptide originally characterized from the thymic protein prothymosin alpha. It appears in laboratory research as a reference peptide studied in immunology-related contexts. It is chemically and structurally distinct from TB-500 (a thymosin beta-4 fragment) despite the shared "thymosin" naming. This index tracks research-use-only (RUO) vendor pricing for Thymosin Alpha-1 to help researchers compare cost across suppliers.

cheapest (first-party)
$4.50/mg
median
$7.70
highest
$22.00
spread
4.9×
first-party vendors
12
Fair-price band · 12 first-party vendors · $/mg
median $7.70
$4.50cheapest $22.00highest
The priciest vendor charges 4.9× the cheapest — buying blind on Thymosin Alpha-1 can cost up to $17.50/mg more.

first-party prices captured 50m ago

Thymosin Alpha-1 · first-party live prices first-party · live 12 listings
#VendorProductSize Price$/mgTrendCode
1 Tegridy-Research Thymosin Alpha-1 10MG first-party · captured 51m ago · earns pepmg $0 · source ↗ 10mg $45.00 $4.50 buy →
2 EZ Peptides Thymosin Alpha 1 10mg first-party · captured 52m ago · earns pepmg $0 · source ↗ · COA ↗ 10mg $58.00 $5.80 buy →
3 Ameano Peptides Thymosin Alpha 1 – 10mg first-party · captured 51m ago · earns pepmg $0 · source ↗ · COA ↗ 10mg $62.00 $6.20 buy →
4 Glacier Aminos THYMOSIN ALPHA 1 10MG first-party · captured 52m ago · earns pepmg $0 · source ↗ 10mg $63.99 $6.40 buy →
5 Hydro Research Thymosin Alpha-1 10mg first-party · captured 51m ago · earns pepmg $0 · source ↗ · COA ↗ 10mg $65.00 $6.50 buy →
6 Ameano Peptides Thymosin Alpha 1 5mg first-party · captured 51m ago · earns pepmg $0 · source ↗ · COA ↗ 5mg $35.00 $7.00 buy →
7 Happy Peptides Thymosin Alpha-1 first-party · captured 51m ago · earns pepmg $0 · source ↗ 10mg $84.00 $8.40 buy →
8 Simple Peptide Thymosin Alpha-1 10mg first-party · captured 50m ago · earns pepmg $0 · source ↗ · COA ↗ 10mg $86.00 $8.60 buy →
9 Pinnacle Peptide Labs Thymosin Alpha-1 (TA1) [10mg] first-party · captured 50m ago · earns pepmg $0 · source ↗ 10mg $109.99 $11.00 buy →
10 Ageless Vitality Peptides Thymosin Alpha 1 5mg first-party · captured 51m ago · earns pepmg $0 · source ↗ 5mg $59.00 $11.80 buy →
11 Biotech Peptides Thymosin Alpha-1 (10mg) first-party · captured 50m ago · earns pepmg $0 · source ↗ 10mg $130.00 $13.00 buy →
12 Apex Peptides Thymosin Alpha 1 (TA1) Complex Thymulin (5mg/3.2mg) first-party · captured 51m ago · earns pepmg $0 · source ↗ 5mg $110.00 $22.00 buy →
COA availability: 4 of 11 vendors selling Thymosin Alpha-1 publish a COA — 2 lab-hosted: EZ Peptides (lab-hosted), Hydro Research (lab-hosted), Ameano Peptides, Simple Peptide. What a COA proves →

Why compare $/mg for Thymosin Alpha-1?

Per-milligram prices for Thymosin Alpha-1 vary across vendors because of differences in synthesis scale, stated HPLC purity, fill quantity per vial, and how each supplier documents identity and lot testing. Comparing normalized $/mg lets a researcher weigh a lower headline price against purity grade and vial size so the true cost of usable material is clear.

Reading the COA

For Thymosin Alpha-1, confirm identity by mass spectrometry against the expected monoisotopic/average mass for the 28-residue sequence (roughly 3108 Da for the acetylated form), since it is easily confused on a label with TB-500/thymosin beta-4 fragments. Look for HPLC purity stated at 98%+ with the chromatogram attached, and treat missing or generic COAs as unverified. Common quality flags include deletion/truncation sequences and residual TFA counter-ion, so check that the report references this specific peptide's lot number rather than a boilerplate template.

FAQ

How is lyophilized Thymosin Alpha-1 typically stored as a research material?
As a general storage note for research material, lyophilized peptides like Thymosin Alpha-1 are commonly kept sealed, desiccated, and frozen (often -20°C or colder) for long-term storage, protected from light, moisture, and repeated temperature cycling. Dry powder is generally more stable than reconstituted material. This is storage information only and not use guidance.
What is a COA and what should I check on one for Thymosin Alpha-1?
A Certificate of Analysis (COA) is a lot-specific document reporting a material's identity and purity. For Thymosin Alpha-1, check that mass spectrometry confirms the expected mass for the 28-residue sequence (not a TB-500 fragment), that HPLC purity is stated with an attached chromatogram, and that the lot number on the COA matches the vial you received.
Why does the per-mg price of Thymosin Alpha-1 differ so much between vendors?
Differences come from synthesis batch size, stated purity grade, the amount of peptide per vial, and the depth of analytical documentation. A vial priced low overall may carry a higher $/mg once fill quantity is normalized, while higher-purity, fully-documented lots often cost more per mg, which is why normalized comparison is useful.

Same cluster

PT-141 $3.00/mg
Selank $2.70/mg
Semax $2.12/mg
DSIP $3.20/mg
Kisspeptin $4.00/mg
IGF-1 LR3 $48.00/mg
→ Reconstitution calculator for Thymosin Alpha-1 research math.
All products listed are sold by third-party vendors for laboratory and research use only (RUO). pepmg sells nothing, ships nothing, and gives no medical, dosing, or human-use guidance. Listings are price-tracking data, not endorsements.