Research peptides,
verified to the molecule.
Peptawell supplies high-purity research peptides for laboratory and analytical use — every batch third-party tested, documented with a published COA, and shipped discreetly.
Purity you can verify, not just trust.
Three commitments behind every order.
Verified Purity
Every batch is tested by an independent lab using HPLC and mass spectrometry — 99%+ purity is the floor, not the marketing claim.
Full Transparency
Every product ships with an accessible Certificate of Analysis, so you can match batch number to lab result yourself.
Discreet, Fast Dispatch
Orders placed before 2 PM are dispatched same-day in plain, unmarked packaging with tracked delivery.
What buyers say about the data behind the order.
"The batch number on the vial matched the COA exactly. That level of traceability is rare in this market."
"Ordered on a Monday morning, had tracking by Tuesday. Packaging was plain and the labeling was clean."
"Peptawell is the only supplier I've used that publishes lab reports without me having to ask twice."
We got tired of vague sourcing.
Peptawell started as a reaction to a market full of unverifiable claims. We built the opposite: a supplier that treats the Certificate of Analysis as the actual product, not an afterthought.
Read Our Story →Ready to see the data behind the peptide?
Browse the catalog, check the batch COA, and order with full transparency.
Shop the CatalogBuilt for people who read the label.
A research peptide supplier run on one principle: if we can't show you the lab result, we shouldn't be selling it.
The Problem We Started With
Most research-peptide suppliers ask you to trust a percentage on a label. Certificates are locked behind a support ticket, or don't exist at all. We built Peptawell because that shouldn't be the industry standard — it should be the exception researchers avoid.
Our Mission
Make independent verification the default expectation for anyone buying research peptides — not a premium feature, not a favor, just how every order should work.
What Makes Us Different
Every batch independently tested via HPLC and mass spectrometry before it's listed.
COAs are published upfront — you never have to request access.
Small-batch sourcing keeps quality control tight instead of scaling past it.
A real support team answers questions — not a rotating ticket queue.
Questions about how we test?
Our process page walks through every step, from sourcing to your doorstep.
See Our ProcessEvery step, documented.
From sourcing to your doorstep, here's exactly what happens to a batch before it reaches you.
Sourcing & Vetting
Suppliers are audited for manufacturing consistency before a compound ever reaches our catalog.
HPLC Purity Testing
High-performance liquid chromatography confirms purity down to the batch, not just the product line.
Mass-Spec Identity Check
Mass spectrometry confirms the compound is what the label says it is — no substitutions, no guesswork.
COA Documentation
Every batch gets a Certificate of Analysis, published and matched to the number on your vial.
Cold-Chain Handling
Temperature-sensitive compounds are stored and packed to protect stability until dispatch.
Discreet Dispatch
Plain packaging, no external labeling, tracked from our facility to your address.
From catalog to tracked delivery.
Browse the Catalog
Filter by category and compare purity data across compounds.
Select Batch & Size
Each listing shows the current batch number available for that size.
Review the COA
Open the published Certificate of Analysis before you buy, not after.
Place a Secure Order
Checkout is encrypted end to end, with order confirmation by email.
Track Dispatch
Same-day dispatch on orders before 2 PM, tracked to your door.
Frequently asked questions.
Yes. Every batch is verified by an independent lab using HPLC and mass spectrometry before it's listed for sale. Published Certificates of Analysis are available for every batch.
All products sold by Peptawell are intended strictly for laboratory research and analytical use. They are not for human consumption, in-vivo use, or any medical or therapeutic application.
Orders placed before 2 PM EST are dispatched same-day whenever possible, in plain packaging with no external labeling identifying the contents. Tracking is provided at dispatch.
Each product listing links to its current batch's Certificate of Analysis. You can also request a specific batch COA directly from our support team.
All Peptawell compounds target 99%+ purity, verified per batch through independent analytical testing rather than a blanket claim across the product line.
Because of the nature of research compounds, we can't accept returns once an order has shipped. If your order arrives damaged or there's a batch quality concern, contact us within 7 days of delivery for a review.
Research peptides, by category.
Every listing includes current batch purity data. Tap a product image to open the quick view.
Not sure which compound fits your research?
Send us your project scope and we'll point you to the right listing.
Ask Our TeamQuestions about an order or a batch?
Reach out — our team typically replies within a few business hours.
Follow Peptawell
Certificate of Analysis
Click the certificate to view it full size.