Sustanon-250 is an oil-based testosterone injection mixture containing four different testosterone esters: testosterone propionate (30 mg); testosterone phenylpropionate (60 mg); testosterone isocaproate (60 mg); and testosterone decanoate (100 mg). Sustanon is designed for rapid but prolonged release of testosterone, usually requiring injections once every 3-4 weeks in clinical settings. This is an improvement over standard testosterones such as cypionate or enanthate, which provide a shorter duration of action. Like all testosterone preparations, Sustanon-250 is a very strong anabolic drug with pronounced androgenic activity. Most often, it is used in cycles of gaining muscle mass, providing an exceptional increase in strength and muscle mass. Sustanon 250 contains a mixture of four testosterone compounds, which were modified by the addition of carboxylic acid esters (propionic acid, phenyl ether of propionic acid, isocaproic acid, and decanoic acid) to the 17-beta-hydroxyl group. Esterified forms of testosterone are less polar than free testosterone and are absorbed more slowly from the injection site. Getting into the bloodstream, the ether is removed, forming free (active) testosterone. Esterified forms of testosterone are intended to prolong the therapeutic effect after administration, which allows for less frequent injections compared to injections of the free (non-esterified) steroid. Sustanon 250 is designed to quickly reach peak testosterone levels (24-48 hours after injection) and maintain physiological concentrations for approximately 21 days/34. Each ampoule of 250 mg contains 176 mg of testosterone.
COMPOSITION
250 mg/ml Testosterone Blend U.S.P. (10 ml VIAL)
SIDE EFFECTS
Testosterone is easily aromatized in the body to estradiol (estrogen). Elevated estrogen levels can cause side effects such as increased water retention, increased fat mass, and gynecomastia. Elevated testosterone can cause androgenic side effects, including oily skin, acne, and body/facial hair growth. Men with a genetic predisposition to hair loss (androgenetic alopecia) may notice accelerated baldness. Anabolic/androgenic steroids can have a detrimental effect on serum cholesterol levels. This includes a tendency to decrease the level of HDL (good) cholesterol and increase the level of LDL (bad) cholesterol, which can change the balance of HDL and LDL in the direction of increasing the risk of developing atherosclerosis.
RECEPTION
Despite the fact that Sustanon 250 acts in the body for a long time, it is usually administered every 7-10 days to increase muscle mass. The usual dosage among male athletes is in the range of 250-750 mg per injection, taken in cycles of 6 to 12 weeks. This level is enough for most users to notice an exceptional increase in muscle mass and strength.