Testabol 400 contains 100mg/ml short-acting Testosterone Propionate, 150mg/ml of Testosterone Cypionate and 150mg/ml of Testosterone Enanthate. The first, testosterone propionate, is short-acting and gives T-400 a quick onset of action in a steroid cycle. The other esters are medium to long-acting. Testosterone is responsible for promoting health and well-being through enhanced libido, energy, immunity, increased fat loss, gaining and maintaining lean muscle mass, preventing Osteoporosis (loss of bone density) and possible protection against heart disease. Testabol 400 has a release time of between 1-12 days. It is typically injected twice every week, though some users opt for a higher injection frequency of three times per week. Average dosages are 250mg-1000 mg per week.