TESTOSTERONE PROPIONATE is an oil based solution of testosterone propionate for IM injection designed to reach peak testosterone serum levels within 24 hours of IM administration and remain elevated for 2 to 3 days. Testosterone propionate 100 is suitable for the treatment of hypogonadism and other disorders related to androgen deficiency. Testosterone Propionate 100 has both anabolic and androgenic effects. Testosterone supplementation has been demonstrated to increase strength and growth of new muscle tissue, frequently with increases in libido. CAS number: 57-85-2. Dosation: 1000mg/10ml. The package has been changed.