Buy Research Peptides UK — HPLC-Verified, COA Per Batch

Research peptides may be supplied and purchased in the UK for laboratory research use. They are not licensed medicines, and they must not be marketed, sold, or used for human or veterinary consumption. All material we supply is sold strictly for in-vitro and laboratory research, and it is the purchaser’s responsibility to ensure their intended use complies with applicable law.

For most laboratory applications, a minimum of 98% purity by HPLC is considered acceptable, and 99% or above is preferable where reproducibility matters. Purity below 98% introduces variability that can affect experimental outcomes. Our standard specification is a minimum of 99% by HPLC with a batch-specific Certificate of Analysis.

A Certificate of Analysis documents the analytical testing performed on a specific batch. A useful COA states the batch or lot number, the date of analysis, the testing method used, the measured purity, and the laboratory that performed the work. A COA that carries no batch number cannot be matched to the vial you received, which makes it largely meaningless.

Orders placed before the daily dispatch cut-off are sent the same working day. UK delivery is typically next working day on a tracked service, and EU delivery generally takes longer depending on destination. Every parcel ships tracked in plain outer packaging.

Unopened lyophilised powder is stable refrigerated at 2–8 °C, and −20 °C is preferable for long-term storage. After reconstitution, refrigerate at 2–8 °C and use within the working window appropriate to that compound. Avoid repeated freeze–thaw cycles, which are a common cause of potency loss.

Bacteriostatic water is generally used where a multi-use working solution is required, because the preservative content limits microbial growth once the vial has been entered. Sterile water is appropriate for single-use preparation. The correct choice depends on your protocol.

Yes. Consumers have a 14-day right to cancel from the date of receipt. Returned items must be unopened, unused, and in their original sealed packaging. Sealed goods that have been unsealed after delivery cannot be returned for health-protection reasons, which does not affect your statutory rights for faulty or misdescribed goods. Full detail is set out in our returns policy.

No. Every compound we supply is intended exclusively for laboratory research. Nothing on this website is a medicine, and none of it is intended or approved for human consumption, veterinary use, or diagnostic application.