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Testomix or Sustanon is a very popular steroid that is appreciated by its users, as it has several advantages compared to other testosterone preparations. Sustanon is a mixture of four testosterones, which, due to a certain structure, have a synergistic effect. This feature entails two positive qualities of interest to athletes. Based on the specific interaction of active chemicals, Sustanon milligram per milligram has a better effect than testosterone enanthate, cypionate and propionate. In addition, the effect of these chemicals is also temporarily one after another, so that Testomix begins to act quickly and at the same time remains effective in the body for several weeks, thanks to the propionate contained in Sustanon.


Testomix has an effect on the body in a day and continues to be active in it for 3-4 weeks due to the decanoate added to the composition. Sustanon has a pronounced androgenic effect, which is combined in it with a strong anabolic. Therefore, it is well suited for building strength and muscle mass. A strong increase in bodily strength comes along with a simultaneous increase in body weight. Athletes using Sustanon talk about a solid increase in muscle, because it accumulates much less water and does not aromatize as much as testosterone enanthate and testosteronecionate.

Practically many bodybuilding athletes who have problems with other testosterones with a significant accumulation of water and high levels of estrogen, prefer Sustanon to other long-acting testosterones. It is striking that Sustanon has a good effect even on highly advanced athletes and in relatively small doses. Interestingly, Testomix gives the same good results for athletes who have repeatedly used Sustanon as in the subsequent period of taking

Side effects

Side effects of Testomix are similar to those of testosterone enanthate (see also Testosterone enanthate), with the exception that they appear less often and are not so pronounced. Depending on the time of administration and doses, using Sustanon can experience the usual androgen-related side effects: such as acne, aggressiveness, sexual superstimulation, oily skin, accelerated hair loss, reduced production of sex hormones.

The accumulation of water and gynecomastia to keep at Testomix within the normal range, or appear less frequently than with Enanthate and Cypionate. Liver damage in Testomix is not possible (see testosterone enanthate), and yet at very high doses, an increase in liver indices may occur, which as normal as they stop taking the drug normally normalize again.


Sustanon is injected most often once a week, while the interval between injections can be up to 10 days. Dosage in bodybuilding and triathlon ranges from 250 mg every 14 days to 1000 mg or more per day. Since such high dosages are not advised, and, fortunately, in most cases they are not practiced, they usually take 250-1000 mg per week. For most, a dose of 500 mg per week is sufficient, which is often reduced to only 250 mg of Testomix per week and combined with some oral steroid.

In treatment, Sustanon is very well suited as a basic steroid, which promotes regeneration, gives the athlete a sufficient push (“Kick”) for intensive training and, along with the already negotiated benefits – a quick tide of strength and a solid increase in muscle mass, stands out well tolerated. For the rapid build-up of muscle mass, Sustanon is often combined with Deca-Durabolin, Dianabol or Anadrol, while athletes who give more attention to quality combine it more with Winstrol, Oxandrolone or even Primobolan.

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