Creatine and protein are the most popular supplements available for building muscle. Creatine is used to increase size, strength and recovery. creatine supplements help increase lean muscle tissue and improve anaerobic/ aerobic performance. Creatine supplements have been researched for many years and are extremely safe to take. There are many different types of creatine on the market, the main difference between them is the delivery system that’s used. Creatine can be found naturally in most meats and fish and has no side effects. If using creatine Monohydrate, take two 5g servings a day. You can take the first serving in the morning and the second after training.