No, RAD140 does not reliably raise testosterone. While there might be a short-lived initial increase, its long-term effect is to significantly suppress your body's natural testosterone production.
Here's a more detailed breakdown:
●The Initial Spike vs. Long-Term Suppression
●Initial Increase: Some users may experience a temporary rise in testosterone as the body attempts to maintain hormonal balance.
●Negative Feedback Loop: RAD140 works by binding to androgen receptors, mimicking the effects of testosterone. This artificial signal causes the body to think it has enough androgens, which triggers a negative feedback loop.
●Suppression of Natural Production: This feedback loop signals the brain to reduce the production of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH). These are the key hormones that tell the testes to produce testosterone. As a result, natural testosterone production drops.
Scientific Evidence from Animal Studies
A 2024 study on rats specifically examined RAD140's effect on testosterone levels. The key findings were:
●After six weeks, no significant difference in testosterone levels was found between rats given RAD140 and those that were not.
●Importantly, this study was conducted on rats that had undergone bilateral orchidectomy (removal of the testes), which is the primary site of testosterone production. The fact that RAD140 didn't change testosterone levels in rats without testes underscores that it doesn't stimulate the testes to produce more testosterone.
Mechanism of Action
RAD140 is a Selective Androgen Receptor Modulator (SARM). It was designed to provide the anabolic (muscle-building) benefits of testosterone while minimizing effects on other tissues like the prostate. However, its selectivity is not perfect, and it still significantly disrupts the body's natural hormonal balance.
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