Masteron propionate, or drostanolone propionate, is the original form of Masteron. More and more people are using it, and methenolone enanthate is generally considered the most popular variety. Most brands and consumers refer to Masteron benefits and side effects as Masteron. Masteron propionate is extremely effective as an antiestrogen and anabolic, but other commercially available steroids are believed to be more potent. Either way, Masteron propionate can be a great ally for improving muscle growth. Drostanolone propionate is believed to have a moderate impact on fat loss. It promotes a favorable metabolic environment, helping people eliminate excess body fat while preserving lean muscle mass.