S4 50mg


1 in stock


S-4 Andarine 50mg


S4, also known as Andarine, is a SARM that selectively binds to androgen receptors in skeletal muscle tissue. There is little danger of nonskeletal muscle tissues experiencing androgen activity.  Additionally, research has shown it does not cause aromatization (conversion of testosterone into estrogen), liver strain, or severe HPTA (hypothalamic pituitary testicular axis) suppression. Aside from building lean body mass, andarine is also used for benign prostatic hypertrophy, muscle wasting, and osteoporosis.



Half Life

4 – 6 hours.

Side Effects

High dosages may result in short-term changes in vision due to a metabolite of S4 binding to vision receptors, also known as yellow eye. Changes go away after the SARM is no longer in the system.

Some users have shown very slight suppression when using S4. A short, mini post cycle therapy regiment is required; the recovery time is only 2-3 weeks after completion.

One of the original formulations that boost lean muscle mass, Andarine S-4 functions a lot like steroids, except that it works selectively on androgenic receptors.

The formulation of Andarine, was originally created by a Japanese company Kaken Pharmaceuticals. It was later developed as a research drug by GTx Inc. Today, this SARM has become pretty popular among athletes and body-builders.

Originally created to treat muscle degeneration, breast cancer, prostate cancer, benign prostatic hypertrophy, and osteoporosis, it has been seen to reduce the weight of the prostate gland in prostate cancer patients.

Besides, it also increases muscle mass and oxidizes body fat, i.e. it is great for both cutting and bulking – the reason why athletes and bodybuilders started using it in the place of anabolic steroids.

Andarine, a far less potent compared to other SARMs, is mild and also has a lower half-life. It does not aromatize, and hence a user has no fear of release of estrogen, water retention, or development of any cardiovascular disorders. Instead, it helps in muscle, bone, and joint repair and relief from pain resulting from their damage or wear and tear.

Given that it is a milder SARM, people generally take 25-30mg a day for 5 days a week. This cycle continues for 10-12 weeks. Generally, a user gains around 10-12lbs after each cycle. Ideally, its dosage should never exceed 40mg a day and always take a 2-day break in each week to ensure you don’t suffer from any vision loss or disruptions.

Besides the benefits mentioned, Andarine is also good at strengthening bones and promoting sex drive and can be stacked with other SARMs quite efficiently – as it is very good at both cutting and bulking


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