Posted by Dan on 14th Oct 2022


Selective androgen receptor modulators or SARMs are a novel class of androgen receptor ligands. They are intended to have the same kind of effects as androgenic drugs like anabolic steroids but be much more selective in their action and considered to possess less unwanted side effects.

As with most performance or physique enhancing products some suit better for some goals than others.

So this is a very brief guide/identification process to help assist you in your research, and only based on opinion and feedback as opposed to any actual scientific studies.

Ostarine / MK-2866

This was along with Andarine the first SARM to become publicly known and of interest to bodybuilding.

Osta is probably best used during cutting phases as its strongest characteristic is the preservation of muscle tissue so an attribute particularly suited to a calorie deficit scenario.

For this reason it can be a great choice to stack with a more directly cutting orientated option such as S4 Andarine or GW-510516.

S4 Andarine

This along with GW is probably the most popular cutting choice. Like with Ostarine it was developed as a treatment to prevent muscle waste.If being compared to a traditional anabolic it might resemble Winstrol.


LGD has shown the most ability of any SARM to put on size that could be considered a bulk. This will, of course, be dependent upon the diet used.

LGD-4033 is expected to produce the therapeutic benefits of testosterone with improved safety, tolerability.

MK-677 / Ibutamoren

Ibutamoren is a non-peptidic, potent, long-acting, orally-active, and selective agonist of the ghrelin receptor and a growth hormone secretagogue, mimicking the growth hormone-stimulating action of the endogenous hormone ghrelin.

This in turn makes it very flexible and able to serve purposes for both gaining and losing goals and always a good stacking option.

GW-510516 / Cardarine

This is commonly regarded as the fat burning SARM and therefore needless to say it is most popular on cutting cycles though there is a possibility it can sit nicely on a bulking cycle too in an effort to restrict fat gain and keep gains leaner.

SR-9009 / Stenabolic

This SARM is very good at boosting metabolic activity making it suitable for cutting, but also as it is reported to offer endurance benefits too can be considered versatile in use depending on ones goals and diet plan.


This SARM is potentially a medical alternative to testosterone therapy in males as it reacts on hormone receptors much in the same way as testosterone and without the documented side effects associated with large dosing of testosterone.Therefore, it would generally be considered as a better fit for bulking cycles and stack well with the likes of LGD-4033.


This SARM is known to attach to the androgen receptor and is perhaps best considered as the myostatin inhibiting SARM and makes more follistatin.

It is arguably the most androgenic like SARM and most popular in bulking cycles.

Hopefully this helps in the selection process of where to carry out your research.

Why Is a SARMS PCT Necessary ?

For those who think a Post Cycle Therapy for SARMs, ”won’t really be required.”

You’re mistaken.

Selective androgen receptor modulators (SARMs) can be suppressive. Even the milder compounds such as MK-2866 at low dosages can be.

When a compound is suppressive, it will impact your body’s natural testosterone levels and production. Your hormone levels will start to drop significantly.

Symptoms of low hormone levels include reduced libido, fatigue, insomnia, decreased muscle mass, and emotional changes.

As you can imagine, those side effects will lead to poor performance in the gym and the fact that maintaining mass will become more complicated.

To prevent your hormone levels from ending up in the gutter, you will need a post cycle therapy supplement.

By starting a proper Post Cycle Therapy for SARMs, you will be able to sustain the size and strength gains you’ve made.