Imagine having tube after tube of competent cells for your transformations, all (virtually) free of charge. The way to reach this nirvana is to make your own competent cells. Traditionally this can be a tricky feat, but the procedure laid out in this guide makes it simple and routine.

Ever wondered what’s going on under the hood of your everyday kits and protocols? This guide breaks down how key techniques actually work, helping you understand the chemistry behind them and troubleshoot with confidence.