Clenbuterol: Chemical: Clenbuterol Hydrocloride Clen comes in both liquid formats and tablet forms. While Clen can have some mild performance boosts on its own in both liquid and oral formats it’s best used with an anabolic steroid or as an addition to post cycle therapy. Clenbuterol has a very light anabolic nature that aids with changes in metabolic systems but ultimately the real value of Clen is that it can be used to supercharge any anabolic steroid cycle. While taking Clen you can see some huge fat burning effects which can help you to drastically gain quality muscle mass as well as lean out and lose fat. Clen is one of the best fat burning medications on the market today and also has an added benefit to increasing your cardiovascular efficiency which can help you push yourself even further in training.