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Side-by-side comparison

Thymosin Alpha-1

Cellular PeptideSafety 8/10

Immune-modulation research

vs

BPC-157

Cellular PeptideSafety 7/10

Tissue repair research

Thymosin Alpha-1
BPC-157
Cheapest price
$18.75 /5mg
$26.96 /10mg
Vendors stocking
20
33
Safety rating
8/10
7/10
Mol. weight
3,108.3 g/mol
1,419.5 g/mol
Administration
Subcutaneous injection
Subcutaneous injection / Intramuscular injection

Price Comparison — 2026

Thymosin Alpha-1

VendorPrice
Ascension Peptides$18.75 /5mgBuy →
Optimum Formula$20.25 /5mgBuy →
Amino Club$31.99 /5mgBuy →
Polar Peptides$32.40 /5mgBuy →
PureRawz$39.73 /5mgBuy →
SomaChems$39.99 /5mgBuy →
+14 more vendors →

BPC-157

VendorPrice
Puratek Peptides$26.96 /10mgBuy →
Peptyx Labs$32.00 /10mgBuy →
Optimum Formula$34.19 /10mgBuy →
Ascension Peptides$35.00 /10mgBuy →
NeuroLabs$40.50 /10mgBuy →
Petratide Science$44.95 /10mgBuy →
+27 more vendors →

Vendors Carrying Both

19 vendors stock both Thymosin Alpha-1 and BPC-157 — convenient if you want to bundle an order.

Optimum FormulaThymosin Alpha-1: $20.25BPC-157: $34.19Visit →
Ascension PeptidesThymosin Alpha-1: $18.75BPC-157: $35.00Visit →
Petratide ScienceThymosin Alpha-1: $59.95BPC-157: $44.95Visit →
Evolve PeptidesThymosin Alpha-1: $51.00BPC-157: $46.67Visit →
Polar PeptidesThymosin Alpha-1: $32.40BPC-157: $63.00Visit →
Amino ClubThymosin Alpha-1: $31.99BPC-157: $63.98Visit →
SomaChemsThymosin Alpha-1: $39.99BPC-157: $63.98Visit →
Apex Peptide SupplyThymosin Alpha-1: $44.99BPC-157: $68.99Visit →
Swiss ChemsThymosin Alpha-1: $63.99BPC-157: $74.00Visit →
Liv Pure WellnessThymosin Alpha-1: $55.00BPC-157: $75.99Visit →
Modern AminosThymosin Alpha-1: $44.00BPC-157: $76.00Visit →
Pinnacle Peptide LabsThymosin Alpha-1: $46.75BPC-157: $76.49Visit →
Pantheon PeptidesThymosin Alpha-1: $48.60BPC-157: $77.76Visit →
Biotech PeptidesThymosin Alpha-1: $65.00BPC-157: $92.00Visit →
Core PeptidesThymosin Alpha-1: $74.50BPC-157: $97.00Visit →
BioLongevity LabsThymosin Alpha-1: $64.98BPC-157: $99.97Visit →
LeoLab RxThymosin Alpha-1: $60.00BPC-157: $100.00Visit →
PureRawzThymosin Alpha-1: $39.73BPC-157: $136.54Visit →
Spartan PeptidesThymosin Alpha-1: $165.00BPC-157: $179.10Visit →

Safety Notes

Thymosin Alpha-1

FDA: Approved in 30+ countries

11,000+ patients in 30+ trials; well-tolerated; approved as Zadaxin globally; excellent safety record

BPC-157

FDA: Not FDA-approved (Category 2)

Extensive preclinical safety; 3 small human studies with zero adverse events; naturally derived gastric peptide

Explore Further

Thymosin Alpha-1

Full profile →Cheapest deals →

BPC-157

Full profile →Cheapest deals →
All current deals →Browse all peptides →
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