Research Peptides You Can Trust

All Infinity 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.

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.

Amino H2O is sterile water containing 0.9% benzyl alcohol, which inhibits bacterial growth. It is a standard laboratory supply used in research settings. We offer Amino H2O in our accessories section as research supply.

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.

Lyophilized (freeze-dried) peptides are highly stable and can last 2+ years when stored properly at -20°C or 2-8°C. Always store away from light and avoid repeated temperature fluctuations.

Orders are processed within 0-2 business days. Standard shipping takes 3-5 business days from fulfillment. Every order includes free shipment protection. Lyophilized peptides don't require cold shipping—they're stable at room temperature. All orders ship in discreet, unlabeled packaging.

Infinity 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.

All Infinity Labs peptides are sold strictly for research, laboratory, and educational purposes only. They are not approved for human consumption, veterinary use, or any therapeutic application. By purchasing, you confirm you are a qualified researcher and will use products in accordance with all applicable laws and regulations.

We offer damage protection on every order. If your product arrives damaged in transit, contact us with photos of the damage and we'll send a one-time replacement. All claims require photo evidence and are subject to review. One replacement per customer per order. Reconstituted products are not eligible. We are not responsible for misuse or improper storage after delivery.

You can reach our support team via email at support@infinitylabs.com. We typically respond within 24 hours on business days. For order issues, have your order number ready. Our team can help with product questions, order tracking, and any concerns about your purchase.