Quality & Third-Party Testing
Every peptide we sell is verified by independent laboratories. Here's exactly what we do — and how you can verify it.
HPLC Verified
High-Performance Liquid Chromatography confirms peptide purity at ≥99% for all standard products.
Third-Party Tested
Every batch is sent to an independent ISO-accredited lab before we accept or ship inventory.
Certificate of Analysis
COA documents are available upon request for every product and batch we carry.
USA Sourced
Our peptides are synthesized and tested domestically — no grey-market overseas sourcing.
Our Quality Process
We don't cut corners. From synthesis to your door, every step is documented and auditable.
Synthesis & Raw Testing
Peptides are synthesized under GMP-aligned conditions. Raw material is tested immediately post-synthesis for identity and purity using mass spectrometry.
HPLC Purity Analysis
Every batch undergoes reverse-phase HPLC analysis. We only accept product measuring ≥99% purity (≥97% for select complex peptides like GLP-3R).
Third-Party Verification
An independent, ISO-accredited laboratory re-tests finished product. No batch ships without passing this step.
Certificate of Analysis Issued
A COA is generated for every validated batch. Request your product's COA via email to Support@rapid-research.co.
Cold-Chain Handling & Shipping
Lyophilized peptides ship in temperature-controlled packaging with ice packs. Same-day processing on orders placed before 2 PM CT.
Quality FAQs
Common questions from researchers about our testing and sourcing standards.
What does HPLC testing confirm? +
HPLC confirms purity by showing what percentage of the sample is the target peptide. We require ≥99% for standard products.
Can I get a Certificate of Analysis for my order? +
Yes. Email Support@rapid-research.co with your order number and the product name. We'll send the COA for your specific batch within 24 hours.
Are your peptides manufactured in the USA? +
Yes. All peptides sold by Rapid Research CO are synthesized and third-party tested domestically in the United States. We do not source from overseas grey-market suppliers.
What purity levels do you guarantee? +
Our standard peptides (GLP-1S, GLP-2T, GHK-Cu, NAD+, MOTS-c, Selank, 5-Amino-1MQ) are ≥99% purity by HPLC. GLP-3R (Retatrutide) carries ≥97% purity due to its structural complexity. All figures are independently verified.
How should I store peptides to maintain quality? +
Store lyophilized powder at −20°C in a sealed container away from light and moisture. Once reconstituted in bacteriostatic water, store at 4°C and use within 28 days.
Request a Certificate of Analysis
Email us your order number and product name and we'll send you the COA for your batch within 24 hours.
Request COA — Support@rapid-research.co