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S-40503: A New SARM That Is Safe for Women

For athletes, bodybuilders and people wanting to grow serious muscles, Selective Androgen Receptor Modulators (SARMS) are their best alternative to getting buff and shredded. SARMS function just like prohormones and anabolic steroids so muscle development can be expected. However, unlike steroids, they do not have the usual negative effects which can be detrimental to one’s health. More and more SARMS are being developed, and one of these is S-40503. Here are some information we’ve gathered to give you an idea of the SARM S-40503.

What S-40503 Is and How It Works

Currently under trial, S-40503 is a Selective Androgen Receptor Modulator (SARM) developed by Kaken Pharmaceuticals (a Japanese company). Its main function is to treat osteoporosis. S-40503 displays good functional selectivity for bone tissue, showing moderately minimal effect on muscle mass and no evident effect on the prostate gland.

Chemical Name: 2-[4-(dimethylamino)-6-nitro-1,2,3,4-tetrahydroquinolin-2-yl]-2-methylpropan-1-ol

Molecular Formula: C15H23N3O3

In animal studies, S-40503 was shown to improve biomechanical strength of femoral cortical bone and bone mineral density. It displayed anabolic effects only on bone tissue in small doses, while bone and muscle growth were affected in greater doses, but prostate gland development was unobtrusive.

The absence of virilizing effects in S-40503 means it can possibly be safe for women to use (an advantage for women as women are more at risk from osteoporosis). In the meantime, while this favorable findings show great promise, additional data about S-40503 is unavailable. Having said that, S-40503 may be more likely to be utilized as a lead compound for growing new offshoots with similar bone anabolic effects (but longer in half-life and with superior bioavailability) than being utilized by humans.

With S-40503 reported to be safe for women, this investigational SARM will be perfect for them. Let us just cross our fingers that this will be further developed and will be available in the future.

In the meantime, if you want a killer SARM stack meant just for women that you can buy now, check out Athena by MedFit Nutrition.

ATHENA Women's Compound

You can learn more about S-40503 from these resources:

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