Ostarine (MK 2866)

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MK 2866 or Ostarine belongs to the group of chemicals known as SARMS (Selective Androgen Receptor Modulators). Ostarine is very effective in keeping and growing lean body mass less the side effects when taking anabolic steroids. MK 2866 is cannot be aromatized, focusing all the effects to AR binding and not androgens/estrogens metabolic converter.


It is a SARM developed by GTx for preventing and method of curing muscle wasting. MK 2866 is a medical prescription for treatment of atrophy, cachexia and sarcopenia. Muscle strength and size of its users has proven to increase by taking it, with less side effects. Even at low doses, it has been found to be anabolic.