Optimize your health
with premium supplements
High-end research starts with our globally sourced, USA lab-tested Peptides. Premium grade peptides for laboratory research.
The Pèptido Labs Benefits
We don't compromise on quality. Every product meets the highest standards.
99% Purity Guaranteed
We ensure highest purity guarantee on our every product tested in lab and STI-691. An authenticated lab document verifying each batch.
CoA with Every Batch
An authenticated lab document verifying each batch's purity, identity, and potency through HPLC testing and mass spectrometry.
Quality you can verify, not just trust.
Verified Potency
Comprehensive testing confirms our peptides are free from impurities, degradation products, and synthesis byproducts.
Long-Term Stability
Optimal pH and formulation testing ensures your peptides remain effective throughout their entire shelf life.
99%+ Purity Guaranteed
Every single vial is rigorously tested to confirm it contains exactly what the label says—down to the microgram.
Batch-to-Batch Consistency
Precision weighing and strict quality controls ensure every single batch meets the same exacting standards.
Frequently Asked Questions
Pèptido Labs provides 99%+ pure, US-tested research peptides, fully verified by a Certificate of Analysis.
What purity level are your peptides and how is it verified?
All Pèptido Labs peptides are guaranteed 99%+ pure. Each batch is independently tested by accredited U.S. laboratories using HPLC (High-Performance Liquid Chromatography) and Mass Spectrometry. We provide a Certificate of Analysis (CoA) with every order showing exact purity percentages, molecular weight verification, and amino acid sequence confirmation.
What is a Certificate of Analysis (CoA) and how do I read it?
A Certificate of Analysis is an official lab document that verifies your peptide’s quality. Key sections include: Purity (should be 99%+), Identity (confirms correct peptide via mass spec), Appearance (should match product description), and Endotoxin levels (should be below 1 EU/mg). Each CoA is batch-specific and available on product pages.
How should I store the lyophilized product?
Lyophilized (freeze-dried) peptides are very stable. For short-term storage (under 3 months), room temperature in a cool, dark place is fine. For long-term storage, refrigerate at 2-8°C or freeze at -20°C. Avoid repeated freeze-thaw cycles. Properly stored lyophilized peptides can remain stable for 2+ years.
What is Pèptido Labs and why should I trust you?
Pèptido Labs is a U.S.-based research peptide supplier committed to quality and transparency. Our peptides are manufactured in-house and independently tested for identity and content on every batch at accredited American third-party laboratories. Unlike other suppliers, we provide full Certificates of Analysis, maintain documented quality procedures, and back everything with our 99%+ identity purity guarantee. Our community of researchers provides real peer feedback and support.