ThePepWarehouse partners with approved manufacturers of Made in the USA research peptides, amino acids, and proteins to provide only the highest quality products available and at the lowest prices. We are proud of our reputation in the scientific research community as a trusted provider of research peptides, amino acids, and proteins.

Mission & Values

ThePepWarehouse believes customer service and quality products are the most important aspects of running our business. We strive to provide exceptional customer service from sourcing the right products to packaging, delivery, and shipping.


We make ordering your research peptides online private and convenient. Visit our website any time day or night, drop the products you need into your fully secured shopping cart, and check out. Our products ship quickly and are available for shipment around the world.

ThePepWarehouse is a leading peptide, protein and reagent–partner for biotechnological companies and academic universities research purposes. We are a subsidiary of an ISO 9001:2008 certified company located in the United States.  Our core goal is to provide you with a preeminent experience through reliable, quality controlled products, comprehensive support and custom services catered to your needs! We are here to provide innovative solutions and custom services to further your in vivo research and developmental needs.

We personally guarantee the renowned quality of our products through multiple layers of quality control management. Every peptide undergoes Amino Acid Analysis to insure precise determination of weight and protein quantities. This provides us with detailed information on the relative amino acid composition and free amino acids. In turn, we are able to offer a proven-product you can truly have utmost confidence in. All Chemicals and Reagents undergo multiple forms of Mass Spectrometry to insure purity and that they are contaminant free. Unlike our competition, who only offer deceiving HPLC reports: at Peptides Warehouse we openly offer Full Spectrum testing through GC-MS in full scan electron ionization mode which defines a precise purity as well as even a trace amount of a contaminant. Furthermore, we also offer HPLC-MS using a photo diode array detector with simultaneous monitoring of wavelengths including electrospray ionization in both positive and negative ion modes. All of the aforementioned tests outline our stringent testing protocols prior to issuing a certificate of analysis.