S.A.R.M.s are Selective Androgen Receptor Modulators. A SARM is exactly what it sounds like: a non-steroidal compound that has the ability to stimulate the androgen receptor (much the same way as anabolic steroids). S.A.R.M.s are orally active and highly bioavailable selective agonists for androgen receptors that have been shown to have anabolic effects in muscle and bone tissue. They have no measurable effect on luteinizing hormone (LH) or follicle-stimulating hormone (FSH), but do have some effect on prostate weight, with an androgenic potency about 1/3rd of its anabolic potency. Still, this is a good trade-off, because their anabolic effect has been measured to be roughly the same as testosterone. They have also been shown to produce dose-dependent increases in bone mineral density and mechanical strength, in addition to being able to decrease body fat and increase lean body mass. Below are the SARMs that you can choose as supplements for your bodybuilding to help you achieve your goals.

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More About SARMs that you need to Know:

Selective Androgen Receptor Modulators (SARMs) bind to the androgen receptor and demonstrate osteo (bone) and myo (muscular) anabolic activity. Binding and activation of the androgen receptor alters the expression of genes and increases protein synthesis, allowing for muscular hypertrophy (growth). So in essence, SARMs like Ostarine, Ligandrol, and YK11 cause muscle growth in the same manner as steroids, however, unlike testosterone and other anabolic steroids and prohormones, SARMs (as nonsteroidal agents) don’t produce a growth effect on prostate and other secondary sexual organs.

Ostarine, Ligandrol, and YK11 in particular, exert their anabolic effects on muscle tissue almost exclusively. So not only do they represent a new potential treatment option for a wide spectrum of conditions, from muscle-wasting diseases (i.e age-related to AIDS or cancer-related), but they also have fantastic muscle-building potential for bodybuilders, fitness enthusiasts, and other athletes. They can also serve as agents for minimizing atrophy during recovery periods from serious surgery, accidents, etc.


  • SARMs are Selective Androgen Receptor Modulators
  • SARMs exhibit similar properties to anabolic steroids without the side effects
  • SARMs are currently in advanced stage tests to treat a number of ailments
  • SARMs can be used for BULKING or CUTTING


SARMs Testosterone
Increase lean muscle mass Causes hormone shutdown
Increase strength Can speed Balding
Increase bone density Can be toxic to internal organs
Can be taken orally Can cause acne/oily skin
Requires Injecting


When anabolic steroids (like testosterone) are added to your system, hormone levels rise, which causes an imbalance. Your body notices the surge and shuts down production of naturally-occurring testosterone and other hormones. This is not the case when using SARMs, owing to the fact that your body is not being flooded by exogenous testosterone and continues to produce its own hormones without the peaks and troughs associated with anabolic steroid use. In the case of SARMs, the receptors that respond to testosterone are “excited” and believe there is more testosterone than there actually is. Your body responds accordingly but does not shut down its own production, so you avoid the side effects associated with the elevated levels that steroids can cause. This means NO BALDING, NO ACNE, NO SHUTDOWN AND NO TOXICITY.


  • Ostarine
  • Ligandrol (LGD)
  • Cardarine (GW-501516)
  • YK11
  • Ibutamoren (MK-677) actually a GH secretagogue, but often classified as a SARM
  • RAD 140
  • Andarine (S4)

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Iron Muscle Supplements is your one-stop-shop for high-quality supplements. We have a huge variety of brands and products, from prohormone alternatives (such as SARMs) to ephedra-based items. We help fitness enthusiasts, bodybuilders, and other athletes all over the world get the physique they want.