A short synthetic fragment of the TB-500/Thymosin Beta-4 sequence, distinct from the full peptide and priced separately in the retail market. The Peptide Index files it under Healing / tissue-repair peptide fragment. Vendors also list it as “TB-500 Frag 17-23”, “TB500 Frag 17-23”.
As of Sep 25, 2026, the lowest listed price is $4.80/mg and the median current listing is $5.05/mg, across 4 vendors (4 comparable single-compound listings). Prices are normalized to US dollars per milligram of peptide, exclude shipping, and are refreshed nightly.
In the nightly price history, the daily median rose from $4.80/mg on Jul 20, 2026 to $5.05/mg on Sep 25, 2026 (+5.2%), based on 64 observed days. Days the crawl missed are left out, not filled in. The daily series is taken across each day’s comparable listings, so it can differ slightly from the current-listings median above. See the full TB-500 Fragment 17-23 price history chart.
| Vendor | $/mg | Price (USD) | Package |
|---|---|---|---|
| Nationwide Peptides | $4.80/mg | $48.00 | 10mg vial |
| Ameano Peptides | $4.80/mg | $48.00 | 10mg vial |
| Core Peptides Direct | $5.30/mg | $52.99 | 10mg vial |
| NuScience Peptides | $6.00/mg | $59.99 | 10mg vial |
Each vendor name links to its public-record trust profile. The TB-500 Fragment 17-23 price page lists every current listing.
Every night The Peptide Index reads vendors’ public catalog pages, records the listed price and stated peptide content, and divides one by the other to get a comparable $/mg. Blends and topical/cosmetic products are excluded from single-compound figures. Read the full methodology and how vendor signals are checked.