Reconstitution guide
TB-500 Reconstitution & Research Protocols:
Important regulatory notice. TB-500 is not licensed by the MHRA for human or veterinary use in the United Kingdom. It is supplied to the laboratory market as a research-use-only reference…
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Important regulatory notice. TB-500 is not licensed by the MHRA for human or veterinary use in the United Kingdom. It is supplied to the laboratory market as a research-use-only reference compound and appears on the WADA Prohibited List in sport. This page is a literature-context overview of laboratory reconstitution practice for research-grade reference samples. It is not personal-use guidance.
Quick research summary. For laboratory researchers handling TB-500 as a lyophilised research-grade reference sample, standard peptide-handling practice applies. Bring the vial to room temperature, add reconstitution solvent slowly down the side of the vial, swirl gently rather than shake, and refrigerate the reconstituted aqueous solution. These are general laboratory notes, not personal-use instructions.
UK regulatory position
TB-500 has not received UK marketing authorisation. The MHRA opened investigations in April 2026 into UK clinics making therapeutic claims about unregulated peptide products. Marketing TB-500 with personal-use injection guidance brings the seller inside the Human Medicines Regulations 2012. TB-500 also appears on the WADA Prohibited List, and WADA-accredited laboratories run targeted assays for it.
Laboratory reconstitution practice for reference samples
- Bring the lyophilised vial to room temperature before opening.
- Add reconstitution solvent (typically bacteriostatic water or a buffered solution appropriate to the assay) slowly down the side of the vial. Do not direct it onto the lyophilised cake at high velocity.
- Swirl gently rather than shake.
- Store the reconstituted aqueous solution refrigerated at 2 to 8 degrees Celsius for the working period.
- Store unreconstituted lyophilised material at minus 20 degrees Celsius for longer-term stability.
- Supplier-published stability data is the appropriate reference for any specific batch.
These are general peptide-handling notes for a research-grade reference sample. They are not personal-use injection instructions and they are not therapeutic guidance.
For sport context
TB-500 appears on the WADA Prohibited List under the peptide hormones, growth factors, related substances and mimetics class. Anyone competing under WADA, UKAD, professional federation rules or military testing should treat TB-500 as a detectable banned substance.
For laboratory researchers
Quality requirements for any research-grade TB-500 reference sample are batch-specific certificate of analysis, third-party HPLC purity data, mass-spectrometry identity confirmation, and clear research-use-only labelling.
Frequently Asked Questions
Is TB-500 licensed in the UK?
No. TB-500 has not received MHRA, EMA or FDA marketing authorisation.
Why is no injection schedule provided?
Because TB-500 is not a licensed medicine and is also a banned substance in sport under the WADA Prohibited List. Publishing a personal injection schedule is inappropriate on both fronts.
Where can I find quality information for a research-grade reference sample?
From the supplier's batch-specific certificate of analysis, third-party HPLC data and mass-spectrometry identity confirmation.
Research use only. The compounds referenced here are research-use-only laboratory reference compounds. Products are not for human or veterinary use. TB-500 is also banned in sport under the WADA Prohibited List.
Informational content for research. This material is educational and intended for laboratory research contexts. It is not medical advice, a prescription, a clinical protocol, or a guarantee of outcome.