Every vial is securely sealed with a safety cap; once removed, the rubber stopper beneath will be revealed. As the vial contains lyophilized powder, reconstitution is necessary prior to use. Peptides Supply also provides a range of reconstitution solutions, including Bacteriostatic Water. Please note that all products on our website are strictly for research purposes and not intended for any other use. We encourage you to review our Terms and Conditions before placing your order.