What should I know about the stability of your protein products? 
Unless otherwise mentioned on the product information sheet, all of our products are formulated in such a manner that the lyophilized proteins are very stable at room temperature. However, we recommend storing lyophilized products at -20°C to -80°C. 

For reconstituted solutions of most products, we recommend short-term storage at 4°C. For extended storage, the protein solution should be stored with a carrier protein (e.g. 0.1% BSA) in working aliquots and stored at -20°C to -80°C. Aliquots should be prepared to a concentration no lower than 1μg/ml, and contain at least 10μl, independent of concentration. 

Please keep in mind that every freeze/thaw cycle may cause some denaturation of the protein; therefore, we do not recommend subjecting aliquots to more than a single freeze/thaw cycle.