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Research-grade peptides · lot documented
Research peptides
your lab can verify
Every lot passes our six-point verification before it ships
≥99%
Purity target per lot
Same day
Dispatch before 2pm ET
Each peptide we list is checked by accredited third-party labs for purity by HPLC and identity by mass spectrometry, screened for contaminants, and published with a lot-specific certificate of analysis before it reaches your bench.
Research use notice: our compounds are supplied to researchers for laboratory and analytical use only. They are not for human or veterinary use.
- Purity on record: HPLC result for every lot
- HPLC + mass spec: Identity confirmed per lot
- Endotoxin screened: LAL result on each certificate
- Controlled production: Documented batch records
- Same-day dispatch: Order before 2pm ET
Most ordered
Popular research peptides
Browse the compounds research teams reorder most. Compare strengths, check the certificate for each lot, and pick the material that fits your protocol.
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More than a purity number
One test isn't enough, so every lot gets six
A purity figure alone can't tell you what else is in a vial. That's why every lot we release goes through six independent checks, from HPLC purity and mass-spec identity to contaminant screens and fill-weight verification. Each result is published on the lot's certificate of analysis, so you know exactly what you're working with before you start.
Our standards
Why labs trust our certified peptides
Controlled manufacturing
- Made to documented procedures
- Batch records kept for every lot
- In-process checks at each production step
Six-point verification
- HPLC confirms the purity of each lot
- Mass spectrometry confirms identity
- Separate screens for endotoxin, heavy metals and sterility
Lot-specific certificates
- Every lot has its own COA
- Look it up by the number on the label
- Full results before you order
Industry & service discounts
- Pricing for military and veterans
- First responders and public servants
- Research institutions
Note: our compounds are supplied for laboratory and analytical research only. They are not intended for human or veterinary use, or for diagnostic or therapeutic procedures.
Shop by application
Browse all research peptides
Popular peptides
Most requested
The compounds our research customers reorder most, from single peptides to multi-compound blends.
Research blends
Several compounds, one vial
Pre-measured combinations for studies that look at several compounds together, verified like every single peptide.
GH secretagogues
Secretagogue peptides for endocrine signalling research.
Healing & regenerative
Peptides studied in tissue-repair models.
Longevity & bioregulators
Compounds used in cellular ageing research.
Neuro & cognitive
Neuropeptides for neuroscience research.
Metabolic peptides
Compounds for metabolic signalling research.
Bulk & wholesale
Multi-vial and institutional pricing.
Our testing protocol
Our six-point quality verification
Accredited third-party laboratories test every lot we release. Here is what each check confirms before a vial is listed.
[1] Purity analysis by HPLC
Reversed-phase HPLC separates the peptide from synthesis by-products and reports its share of the total. Results are published in our purity reports.
[2] Identity by mass spectrometry
The measured molecular mass is compared with the expected sequence, confirming the vial holds the compound on the label.
[3] Endotoxin, heavy-metal and LPS screening
Each lot is screened for bacterial endotoxin with the LAL assay and tested for heavy metals, so contaminants a purity test can't see are caught.
[4] Sterility verification
An accredited laboratory confirms that the lot shows no microbial growth before it is released.
[5] Content quantification
Fill weight and concentration are checked against the label, so the amount stated is the amount supplied.
[6] Appearance & physical check
Every vial is inspected for cake quality, seal integrity and labelling accuracy before it ships.
- Purity target
- ≥99%
- Checks per lot
- 6
- Screened for endotoxin
- Every lot
- COAs published
- 100%
Research questions
Frequently asked questions
Research resources
Peptide intelligence
Plain-language guides to the methods behind our certificates: how purity and identity are measured, what contaminant screens show, and how to handle lyophilized material in the lab.
All articlesQuality testing
How to read a certificate of analysis
What each line of a COA tells you, which results to check first, and how to match the document to the vial on your bench.
4 min read
Analytical methods
HPLC purity explained
Reversed-phase HPLC separates a peptide from its synthesis by-products. Here is what the percentage on a report means, and what it leaves out.
3 min read
Analytical methods
Confirming identity with mass spectrometry
How a measured molecular mass confirms that a vial holds the sequence on its label, and why it complements the purity result.
3 min read
Research • Quality • Confidence
Move your research forward
with confidence
Transparent production and independent testing, so your results start from material you can document.
Note: all products are supplied exclusively for research. They are not intended for human consumption, veterinary use, or therapeutic or diagnostic procedures.
Review the certificates of analysis and product documentation before you order or begin an investigation.
Every lot documented
Stock your lab
for the next study
Lyophilized, lot-labelled vials with a published certificate of analysis for every lot. Supplied for laboratory and analytical research only.