Optima Supply — TB-500 COAs

Does Optima Supply sell TB-500?

Yes — Optima Supply currently lists TB-500 in 1 variant starting at $65.00 ($6.50/mg).

Is Optima Supply's TB-500 third-party tested?

Yes — Disclosed Labs has indexed 6 Certificates of Analysis for Optima Supply's TB-500, with the most recent showing 97.0% purity. Optima Supply holds an overall trust grade of B (80/100) across all 131 COAs on file.

What is Optima Supply's trust grade for TB-500?

Optima Supply has an overall Disclosed Labs trust grade of B (80/100), computed from 131 COAs across all peptides. The most recent TB-500 COA was issued by Janoshik Analytical.

Where is the cheapest TB-500?

As of the latest data, Peptide Supply Co. offers TB-500 at $3.40/mg — compare with Optima Supply's listing at $6.50/mg. See the full TB-500 price comparison.

Is TB-500 legal to buy?

TB-500 is among the peptides under FDA review for the Category 1 (503A) bulk-substances list — removed from Category 2 in April 2026 but not yet on a finalized Category 1 list. The FDA PCAC committee meets July 23–24, 2026 to make recommendations on which peptides may be compounded, and under what conditions — the PCAC is advisory only, and the FDA would issue any final rule on a separate, later timeline. If a final rule is ultimately issued, a valid prescription from a licensed prescriber may be required for compounding access; timing is uncertain. Current sales are for research purposes only. Disclosed Labs does not provide medical or legal advice.