We're hitting 99% purity consistently across every batch of our custom peptides, and that's the kind of purity that makes or breaks your assay results — the difference between a clean binding curve and a wasted week troubleshooting false positives from truncation or deletion impurities.

Each white powder sample is lyophilized from a controlled synthesis run, and we store it at 2-8°C in a dry environment to lock in that strucutral integrity for a full two years of shelf life. I'll tell you straight up — if you're running time-sensitive receptor binding studies or enzyme kinetics, you don't want peptides that degrade mid-experiment, and this stability delivers.

You can order in vials as small as 2mg or as large as 10mg per vial, with 10 vials per box, and we'll scale up to 1g bottles for bigger workflows. The MOQ is just one box, so you're not forced to commit to bulk before you've validated the sequence performance in your own hands.
Every batch is manufacured under GMP guidelines, which means we're following those same rigorous documentation and environmental controls that pharmaceutical production demands, not just cosmetic specs. HPLC and mass spec confirm the purity and molecular weight before we ship, and we'll share those test results with you.

Teh real work happens in synthesis itself — we use Fmoc solid-phase chemistry with controlled deprotection cycles to minimize racemization and side reactions that can drop your yield or introduce unwanted variants. That's the kind of detail that keeps your replicates reproducible and your data publishable.
MOQ is 1 box, which contains 10 vials in your chosen specification of 2mg, 5mg, or 10mg per vial. If you need larger volumes, we also offer 1g per bottle packaging.
Yes, we provide a Certificate of Analysis with each batch, confirming ≥99% purity by HPLC. Additional GMP-related documentation is available upon request.
Store at 2-8°C in a dry environment. Properly stored, peptides have a 2-year shelf life. Avoid exposure to moisture or extreme temperatures to preserve the white powder form.
Absolutely—we specialize in custom sequences. For packaging, we can adjust vial quantities or bottle sizes depending on your research needs. Just share your requirements, and we’ll confirm lead time and pricing.
Standard lead time is 2-4 weeks for sequences up to 30 amino acids, including synthesis and QC. Rush orders can be arranged if needed. We follow GMP guidelines for production to ensure consistent quality.
Keenly impressed with the overall experience from Precision Peptide Labs. The logistics were handled exceptionally well; my order arrived promptly and was packaged with great care to ensure the integrity of the peptide powder. The quality of the product itself appears to be top-notch, aligning perfectly with the high-purity claims made. Every step, from ordering to delivery, felt professional and reliable. Customer service was also outstanding—responsive, knowledgeable, and courteous in all communications. They provided clear updates and were quick to address any minor inquiries I had. This level of service and attention to detail in both the product and the delivery process makes them a highly recommended supplier for research materials. The seamless integration of quality control, efficient shipping, and supportive service truly sets a high standard.
I received my order from Precision Peptide Labs much faster than anticipated, which was a pleasant surprise. The shipping was handled very efficiently, and the package arrived in perfect condition without any delays. In terms of quality, the peptide powder appears to be of high standard, neatly packaged to ensure purity and safety during transit. The customer service team was exceptionally responsive and helpful, promptly addressing my inquiries with clear and friendly communication. Overall, I'm highly satisfied with the experience and would confidently recommend them for their reliability and professionalism.