COA matched a peer-lab retest
Sent a sample to a collaborating lab for blind retest. Their HPLC trace matched the Vuor Labs COA within rounding error. That cross-validation is the whole point.
GH Secretagogues

Selective GH secretagogue
4.8 · 20 verifiedA pentapeptide GHRP that selectively stimulates pituitary growth hormone release with negligible effect on cortisol, prolactin, or ACTH — among the cleanest GH secretagogues in the research pipeline. Supplied as lyophilised powder.
Supplied as lyophilised powder. Store sealed vials at −20 °C for long-term stability, or 2–8 °C for short periods. Reconstitute with bacteriostatic water added slowly down the vial wall, swirl rather than shake, and keep reconstituted material refrigerated.
For laboratory research use only. Not for human or veterinary use.
Arrives damaged, warm, or not matching its certificate? We replace it or refund it.
Read the policyEvery review from a confirmed purchase
Sent a sample to a collaborating lab for blind retest. Their HPLC trace matched the Vuor Labs COA within rounding error. That cross-validation is the whole point.
Used three suppliers before Vuor Labs. This is the only one where the HPLC trace came back completely clean — no secondary peaks, purity sat at 99.4%. Shipping to the UK took 8 days, well within expectations.
Four orders in and the quality has not wavered once. Every batch comes with a COA and every COA comes back clean. That level of consistency is rare in this space.
Vial reconstituted with bacteriostatic water in seconds — no haze, no particulates. Per-batch COA matched the label. Will be reordering for the next study cohort.
The level of QC presentation here — serial-tracked COAs, sealed vials, batch IDs — is what I expect from a regulated source, not a research outlet. Will continue ordering.
Dry ice still solid on arrival, vials at temp, tamper seal intact, packing materials reusable. Whoever runs fulfillment understands what cold-chain actually means.
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