Anabolic steroids, technically known as anabolic androgenic steroids (AAS), or simply as "steroids", are drugs that mimic the effects of testosterone and dihydrotestosterone in the body. They increase the synthesis of proteins within the cells, which results in the accumulation of cellular tissue (anabolism), especially in the muscles. Anabolic steroids also have androgenic and in some cases virilizing properties in women, including the development and maintenance of male characteristics, such as the growth of vocal cords, testicles and body hair (secondary sexual characteristics). (Wikipedia)

Anabolic steroids can be divided into 3 distinct families:


Main characteristics of the steroids in this family are aromatization (testosterone, boldenone, dianabol) and conversion to metabolites such as DHT and analogues (testosterone, halotestin, boldenone, dianabol)

- Testosterone and its esters: suspension (test without bound ester), short half-life testosterones (propyanate, phenyl), long half-life tests (enanthate, cypionate, decanoate), mix of esters (durateston, omnadren). Methyltestosterone (oral)
aromatize (strong effect) and convert to DHT (strong effect)

- Dianabol (methandrostenolone)
aromatizes (strong effect) and converts to dihydrometandrostenolone (weak effect) through the enzyme 5-alpha-reductase

- Equipoise (Boldenone)

aromatizes (weak effect) and converts to DHB (weak effect) through the enzyme 5-alpha-reductase

- Halotestin (Fluoxymesterone)

does not aromatize, but converts to DHT through the 5-alpha-reductase enzyme

- Turinabol (4-Chlorodehydromethyltestosterone)

does not aromatize or convert to DHT through the 5-alpha-reductase enzyme

2) 19-NOR (means that a testosterone molecule was altered in the 19th position to give us a new compound):

Main characteristics of the steroids in this family are that they are progestins, famous for having some possible effect on dopamine receptors (may increase prolactin), and also for a possible greater suppression of the HPT axis compared to other steroids, but in general nandrolones and trenbolones have very different aesthetic effects (although both are very anabolic), while nandrolones convert to estrogen and may suffer from the action of the 5-alpha-reductase enzyme, trenbolone does not suffer these effects, but it can potentiate estrogenic effects and has the most aggressive androgenic effects among the steroids, given their high androgenicity and affinity for the androgen receptor.
- Nandrolone (phenylpropionate, decanoate, laurate)

- Trenbolone (acetate, enanthate, parabolan)


Main characteristics of the steroids of this family: they do not aromatize, some even seem to have a type of antiestrogenic activity (masteron, primobolan, proviron), they also do not suffer the action of the enzyme 5-alpha-reductase. In general, they are drugs with quality gains (except for hemogenin, which seems to potentiate estrogenic effects). Some of them are also known to drastically reduce levels of SHBG (stanozolol, hemogenin, proviron), increasing the availability of androgens' action, once they stop binding to it.

- Oxandrolone

- Stanozolol

- Hemogenin (Oxymetholone)

- Masteron (Drostanolone Propionate)

- Primobolan (Methenolone) - derived from DHB

- Proviron (Masterolona)

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