USB products having the Tested User Friendly™ brand are functionally tested in a specific application with a buffer and protocol. The tested buffer and protocol accompany each product, providing time-saving convenience and reducing the number of variables which could hinder your most critical experiments. Many TUF qualified enzymes are supplied with a reaction buffer and functionally tested enzyme dilution buffer. USB Markers are supplied in TUF tested ready-to-load buffer or a separate tube of tested loading buffer.

Molecular Biology Products