Here's an article that I kept around.
Ostarine cannot be aromatized, conferring all their effects to AR binding and not to metabolic conversion to active androgens/estrogens.
However blood work from users has shown a slight elevation in serum estradiol levels (which may be one of the factors in its high effectiveness for treating tendon, ligament, and bone injuries or illnesses.
This elevation is extremely small and is no case for concern. If however you are absolutely concerned about slight increases in Estrogen, you can always opt for low doses of OTC aromatase inhibitor’s such as 6bromo or very very low doses of prescription aromatase inhibitor’s like adex or aromasin.
Advantages Of Ostarine when compared to Steroids/ProHormones
There is no need for pre cycle supports such as Hawthorn berry. There is no need for on cycle supports such as milk thistle for the liver, policosanol or RYR for cholesterol etc. Some suppression may be present at doses of 25mg+ run for longer than 4 weeks, however a stringent PCT of prescription SERMs like nolva or Clomid is not necessary. High oral biovailabilty without significant damage to your liver as with ProHormones. Great sense of well being while on, (without the aggression which can often detrimentally impact users daily lifes). No need for a long time period off between cycles; the recommended time of period for normal cycles would be Time on +PCT, so for a typical 6 week cycle and 4 week PCT, a user would have to wait another 10 weeks after PCT to start another cycle. Ostarine (MK-2866) also resulted in a dose-dependent decrease in LDL and HDL cholesterol levels, with the average LDL/HDL ratio for all doses remaining in the low cardiovascular risk category – hence there is little impact on cholesterol values.