Everything NH Peptides supplies is reference material for laboratory research use only. Reproducible work depends on knowing exactly what is in the vial, so every lot is analysed by an independent laboratory before release and the results are published against the lot number.
The short version: independent analysis on every lot, a ≥99% purity specification, and a lot matched certificate of analysis you can read before or after ordering. Not for human or veterinary use.
Analysis
We do not rely on supplier declarations alone. Each lot is analysed by an independent laboratory using two complementary methods, because purity and identity are different questions and both need answering.
Together these establish both what the compound is and how pure it is. Our release specification is a minimum of 99% purity. A lot that does not meet it is not released for sale, and the measured figure for the lot you receive is on its certificate.
Shop by category
Every compound we hold, grouped by the system it is studied in. All lots are analysed by RP-HPLC and ship with a lot matched certificate of analysis.
Reference material held for cellular and senescence pathway work, supplied as lyophilised powder against a lot matched certificate.
Sequences studied in dermal and extracellular matrix models, released only once identity and purity are confirmed on the lot.
Analytical reference standards used in immune and microbiome system studies, each lot analysed by RP-HPLC before release.
Incretin and amylin analogues held for metabolic pathway study design, including retatrutide, tirzepatide and cagrilintide.
Reference standards used in endocrine axis and receptor signalling research, including growth hormone axis analogues, sequence fragments and melanocortin receptor ligands.
Reference standards held for metabolic and energy pathway work, including mitochondrial derived peptides and small molecule coenzymes.
Analytical reference standards used in immune and microbiome system studies, each lot analysed by RP-HPLC before release.
Incretin and amylin analogues held for metabolic pathway study design, including retatrutide, tirzepatide and cagrilintide.
Traceability
Analytical results are only useful if they can be tied back to the vial that produced them. Every lot we release is documented so that link holds long after the order closes.
No lot is listed for sale until its analysis is complete and it meets the release specification. A product showing no certificate is either awaiting results or not currently held.
Tested, then listed
Certificates are filed against the lot number. Reorder later and you receive the certificate for that lot, not a generic document reused across the range.
Lot specific
Each vial label carries the compound, the labelled quantity and the lot number. We hold records linking supplied lots to the purchaser so material can be traced if a question arises later.
Documented and auditable
Handling
Peptides are supplied as a lyophilised white to off white powder. Freeze drying removes water under vacuum, which keeps the material considerably more stable for storage and transport than a solution would be.
Storage conditions and stock solution preparation are set out on each product page and on the storage and handling sheet enclosed with the order.
Compliance
All products listed on this website are supplied for laboratory research use only. They are not medicinal products, are not licensed by the Medicines and Healthcare products Regulatory Agency, and are not for human or veterinary consumption, diagnostic, therapeutic, food or cosmetic use. Nothing on this website is an offer to supply to the general public. Sale is restricted to persons aged 18 or over who are qualified researchers or who purchase on behalf of a research institution, laboratory or business. Buyers are solely responsible for handling, storage, disposal and for compliance with all laws that apply to their own work.
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