TB-500 (thymosin beta-4 fragment)Not approved (research only)
TB-500 price per mg
On October 19, 2026, 34 vendors had TB-500 in stock; the median of their lowest prices was $6.45 per mg (range $2.50–$16.50).
Significantly more expensive
- BioLongevity Labs's lowest in-stock TB-500 price was $16.50/mg — 2.56× the $6.45 median.
- Sports Technology Labs's lowest in-stock TB-500 price was $14.00/mg — 2.17× the $6.45 median.
- Biotech Peptides's lowest in-stock TB-500 price was $12.40/mg — 1.92× the $6.45 median.
- Extreme Peptides's lowest in-stock TB-500 price was $12.00/mg — 1.86× the $6.45 median.
- Pure Lab Peptides's lowest in-stock TB-500 price was $12.00/mg — 1.86× the $6.45 median.
- Ascension Peptides's lowest in-stock TB-500 price was $10.80/mg — 1.67× the $6.45 median.
- Licensed Peptides's lowest in-stock TB-500 price was $10.00/mg — 1.55× the $6.45 median.
- Pinnacle Peptide Labs's lowest in-stock TB-500 price was $10.00/mg — 1.55× the $6.45 median.
Every TB-500 listing we verified (75)
Alphabetical by vendor. Price per mg = price ÷ total mg. Excludes blends, kits and capsules.
What price does not tell you
A low price per mg says nothing about whether the vial contains what the label claims. Independent tests regularly find under-filled or impure research peptides. Check for a certificate of analysis that matches your lot number and names the laboratory. TB-500's regulatory status: Not approved (research only).
Related: TB-500 profile, TB-500 10 mg vial math, peptide calculator.
TB-500 price FAQ
How much does TB-500 cost per mg?
On October 19, 2026 the median of vendors' lowest in-stock TB-500 prices was $6.45 per mg, with a range of $2.50 to $16.50 across 34 vendors with stock.
Which vendors charge the most for TB-500?
BioLongevity Labs ($16.50/mg, 2.56× the median); Sports Technology Labs ($14.00/mg, 2.17× the median); Biotech Peptides ($12.40/mg, 1.92× the median); Extreme Peptides ($12.00/mg, 1.86× the median); Pure Lab Peptides ($12.00/mg, 1.86× the median); Ascension Peptides ($10.80/mg, 1.67× the median); Licensed Peptides ($10.00/mg, 1.55× the median); Pinnacle Peptide Labs ($10.00/mg, 1.55× the median).
Is TB-500 legal to buy?
Not approved (research only). Products sold as "research use only" are not approved for human use; see the TB-500 profile for its regulatory status.
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