Question
Do SARMs Cause Gyno?
You may have heard bodybuilders and fitness enthusiasts online claiming that SARMs have caused them to develop gynecomastia, and you’re probably looking for confirmation.
Every Sarmguide article, newest first. Pick a topic or a type to narrow the list.
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You may have heard bodybuilders and fitness enthusiasts online claiming that SARMs have caused them to develop gynecomastia, and you’re probably looking for confirmation.
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No SARM has been tested for bulking in healthy lifters. Here is what the human studies, animal data and user reports say about LGD-4033,…
Question
SARMs, or Selective Androgen Receptor Modulators, are often categorized as performance-enhancing drugs (PEDs).
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Sermorelin is the first 29 amino acids of growth hormone-releasing hormone. It was approved in the US as Geref for children with GH deficiency…
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Raloxifene is a SERM that blocks estrogen in breast tissue. How it is used for gyno (gynecomastia) in men, its side effects and how…
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Andarine (S4) is a SARM popular in the fitness community for its reported effects on lean muscle and body fat. No human trial results…
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No SARM has been shown to cause meaningful fat loss in people. Here is what the human trials, animal studies and regulators say about…
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Yes. In human trials, LGD-4033 and ostarine lowered total testosterone and SHBG even at 1–3 mg/day. Levels returned to baseline after stopping in the…
Guide
Peptides used in bodybuilding range from GH-releasing peptides to IGF-1 analogs and "healing" peptides. Most have little or no human evidence for muscle growth,…
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Epitalon is a synthetic four-amino-acid peptide based on a pineal extract. It lengthened telomeres in cell studies, but a 2026 review calls it biologically…
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No SARM has been tested for fat loss or muscle in healthy young women. Here is what trials in older and ill women showed,…
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No human study has shown that SARMs cause cancer, but no long-term human data exist either. Some SARMs are being tested as cancer treatments.