Peptide vendor warning
Community Warning!
Independent laboratory testing (PeptideScore/Finnrick Analytics) found elevated lead contamination in sampled products (Retatrutide, Semaglutide, Tirzepatide), contradicting the vendor's claims of ≥99% purity. All three tested products received a 'BAD' designation with scores of 3.0/10 and an overall 'E' (Poor) rating.
Oath Research Overview
Oath Research (formerly Oath Peptides) is a US-based research peptide supplier headquartered in Gilbert, Arizona, that synthesizes compounds in-house under ISO-certified protocols and independently verifies each batch through triple-pass HPLC, mass spectrometry, and endotoxin screening at a CLIA-certified US laboratory. The company sells exclusively for research, laboratory, or analytical purposes and is not a compounding pharmacy or outsourcing facility.
public coas
per-batch coa
ships to us
What customers love about Oath Research
Our top-rated vendor
Vendors are evaluated on third-party testing rigor, certificate of analysis transparency, and pricing. This spotlight is updated as new data comes in.
The vendor below currently holds the highest score across those criteria.
#1 Rated Research Peptide Supplier
What customers dislike about Oath Research
Reviews shaping this summary
Anonymous
Jun 3, 2026
Transparent and quick
Every single vial has a scannable code that pulls the actual third-party report.
Anonymous
May 29, 2026
Third order, still great
Same fill quality, same fast domestic shipping, COA posted every time.
Anonymous
Mar 2, 2026
My go-to now
Domestic shipping, real COAs, accurate fills. Done shopping around.
Anonymous
Mar 14, 2026
COAs always check out
I check posted COAs against the lot numbers every order and Oath has never been off.
Anonymous
Feb 19, 2026
Solid, just wish stock remained
Quality is great when you can get it. Retatrutide was out of stock for a while.
Company details
Written by the company
Oath Research (formerly Oath Peptides) is a US-based research peptide supplier headquartered in Gilbert, Arizona, that synthesizes compounds in-house under ISO-certified protocols and independently verifies each batch through triple-pass HPLC, mass spectrometry, and endotoxin scr…
Contact info
Arizona, USA
23 reviews
5
90%
4
10%
3
0%
2
0%
1
0%
Testing standards
In-house HPLC
Mass spectrometry
COA publicly available
Per-batch COA
Third-party labs
Accepted methods
credit card
Shipping & pricing
Ships to
mid pricing tier
Last verified
June 19, 2026
Oath Research reviews
Reviews sourced from across the web and written by real users on PeptideMind. Gathered from popular platforms and our own community so you get the full picture.
We screen reviews, but don't fact-check them
Reviewers' opinions are their own. We may mark a review Verified when we can confirm a real transaction occurred, but we don't validate individual claims. All reviews are screened by automated software to catch guideline violations — flag anything we may have missed.
23 reviews
5
90%
4
10%
3
0%
2
0%
1
0%
Anonymous
Jun 3, 2026
Transparent and quick
Every single vial has a scannable code that pulls the actual third-party report.
Purity & Accuracy:
Anonymous
May 29, 2026
Third order, still great
Same fill quality, same fast domestic shipping, COA posted every time.
Purity & Accuracy:
Shipping Speed:
Anonymous
Mar 2, 2026
My go-to now
Domestic shipping, real COAs, accurate fills. Done shopping around.
Purity & Accuracy:
Shipping Speed:
Packaging:
Anonymous
Mar 14, 2026
COAs always check out
I check posted COAs against the lot numbers every order and Oath has never been off.
Purity & Accuracy:
Anonymous
Feb 19, 2026
Solid, just wish stock remained
Quality is great when you can get it. Retatrutide was out of stock for a while.
Purity & Accuracy:
Anonymous
Feb 19, 2026
Awesome customer support
Got a real human who was knowledgeable about the research products.
Customer Service:
Anonymous
Apr 4, 2026
Solid vendor all around
Customer service answered within the hour. Order shipped same day.
Purity & Accuracy:
Shipping Speed:
Customer Service:
Anonymous
May 18, 2026
Smooth, quick order
COA QR scanned to a real HPLC report that matched the lot. Two days from Arizona.
Purity & Accuracy:
Shipping Speed:
Anonymous
May 23, 2026
COA checked out
Sent my own sample to an independent lab for testing and it lined up with the posted COA.
Purity & Accuracy:
Anonymous
Jun 15, 2026
A solid, steady source
Two day shipping, lyophilized cake intact and the batch report scanned.
Purity & Accuracy:
Shipping Speed:
Packaging:
Frequently asked questions
Is Oath Research a legitimate peptide vendor?
Based on 23 reviews on PeptideMind, Oath Research holds a 4.8/5 overall rating. Oath Research provides publicly available certificates of analysis (COAs). As with any research chemical vendor, we recommend reviewing available lab documentation and community feedback before purchasing.
Does Oath Research provide certificates of analysis (COAs)?
Yes, Oath Research makes COAs publicly available for their products on a per-batch basis. Their testing includes: mass spectrometry, per-batch COAs, third-party testing via Freedom Diagnostics.
What countries does Oath Research ship to?
Oath Research ships to: US.
What payment methods does Oath Research accept?
Oath Research accepts the following payment methods: Credit Card.
Where is Oath Research based and when were they founded?
Oath Research is based in ARIZONA, USA.
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