Trenbolone Acetate is one of the most powerful anabolic steroids. The drug is notable for its affordable cost and high quality. During the course, it allows the athlete to significantly accelerate the growth of muscle mass and increase strength indicators. Now it allows you to get the desired results not only for experienced athletes, but also for beginners.

Combined Course


Twelve (Exp. 1) and 24 (Exp. 2) young growing bulls were used to compare the effects of long-acting, cholesterol-based implants with short-acting, lactose-based implants. Each implant contained 200 mg of trenbolone acetate and 40 mg of 17β-estradiol. The long-acting, cholesterol-based implants were applied once either 18 wk (early implantation) or 12 wk (late implantation) before slaughter. The lactose-based pellets were implanted once (6 wk before slaughter), twice (12 and 6 wk) or three times (18, 12 and 6 wk) before slaughter. Treated animals had higher live weight gains, a lower feed conversion ratio, a higher proportion of lean meat and a lower proportion of adipose tissue than control animals. In Exp. 1 live weight gain of bulls implanted early with a single cholesterol-based implant was similar to the gain of animals treated three times with a lactose-based implant, but in Exp. 2 the effects of the long-acting implants given early were not sustained. In Exp. 3, 24 young growing bulls were used in a 3 × 2 factorial design to compare the effects of three dose levels of trenbolone acetate (100, 200 and 300 mg) and two levels of 17β-estradiol (40 and 60 mg). There were no significant differences between treatment groups, but highest live weight gains were observed in animals implanted with 300 mg of trenbolone and 60 mg of estradiol. This group also yielded the highest proportion of lean meat and the lowest proportion of adipose tissue. There was a decrease in plasma urea concentration after each implantation. It appeared also that plasma trenbolone was higher with implants containing 60 mg of estradiol. There were no differences between groups in growth hormone response to arginine stimulation.

Trenbolone Acetate vs. Trenbolone Enanthate vs. Parabolan (Tren-Hex)

The three main forms or esters of Trenbolone are Trenbolone Enanthate, Trenbolone Acetate and Trenbolone hexahydrobenzylcarbonate (Tren-Hex for short or Parabolan as the brand name). These are all developed as prodrugs, meaning they are an inactive form until they are metabolized in the body, where they then are converted into Trenbolone.

Trenbolone acetate was developed for veterinary use in cattle to improve muscle mass. It has an elimination half life of just two to three days. This is considered to be the most potent of these three Tren esters with the highest percentage of active Trenbolone per 100mg.

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Because it is so fast acting, Tren acetate requires more frequent injections in a cycle, with every other day being the most common protocol. Trenbolone acetate is the most commonly used form of Tren by anabolic steroid users.

Trenbolone enanthate has a 7 day half life and this is an ester that was never released to market, but can still be found on the black market today.

Tren enanthate is a slower acting form but brings the same benefits like huge increases in muscle mass, nitrogen retention, boosted protein synthesis and a big gain in endurance.

Parabolan or Tren-hex has a half life of 14 days and is a long acting injectable compound which was discontinued in production in the late 1990s. Besides the longer half life, Parabolan is considered to have the same properties and effects as Trenbolone acetate.

Although some people might be tempted to combine multiple forms of Tren in a cycle, this has no benefit since they are all so chemically similar. Instead, it would result in a dangerously high dosage and magnification of Trenbolone side effects.

Read also about more about intramuscular injections

Combination with other steroids

Combination with other steroids

For mass gain, Trenbolone Acetate 100mg is best used as a solo course. Some athletes combine Trenabol 100 with Nandrolone. To dry and form relief muscles, the drug is combined with Anavar or Winstrol.