Cart 0

Pure Science Labs S4 (Andarine) (60 capsules)

RM 258.00

Pure Science Lab S4 (Andarine) is now available at Proteinlab Malaysia!

S4 Andarine (also known as Andarine or S-40503) is a selective androgen receptor modulator (SARM) that is known to have anabolic effects almost identical to steroids, but with fewer androgenic side effects.

Andarine was initially developed as a possible treatment for muscle wasting diseases and osteoporosis, but it has earned it's popularity among athletes and bodybuilders as a performance-enhancing drug due to its ability to increase muscle mass and strength.

Having said that, it is important to take note that the use of S4 Andarine has been banned by the World Anti-Doping Agency (WADA) in sports,  and it is also a controlled substance in some countries.

It is important to note that the use of S4 Andarine for any purposes other than the treatment of medical conditions is illegal and possibly harmful. The following potential benefits are not approved or verified by regulatory agencies and should not be considered as medical advice.

Objective of S4

To sustain/gain muscle mass while stimulating fat elimination at the same time.

How S4 Works:


A Sarm such as S4 is a good example. S4 attaches to the AR and sticks to it; each time the AR interacts with testosterone, S4 forces it to produce genes that exclusively benefit muscle and bone growth. In other words, S4 is a form of SARM that attaches to the androgens, the only variation is that the S4 generates selective anabolic activity.

As said earlier, SARMS functions by tying to the AR resulting in anabolic activity. Due to this fastening and stimulation, more protein is produced which allows muscle building. S4 can trigger muscle development in the same way as steroids, but minus the same unwanted side effects, the latter has on the prostate and other sexual organs.

S4 is a SARM with the utmost androgenic effects as it is around 33% of the strength of testosterone when attaching to AR. S4 also increases the amount of muscle mass produced by desensitizing the AR to the individual's natural testosterone to influence a stronger effect.

S4 is by far the most versatile SARM ever created. Not only is it the first SARM approved for a stage 2 research study, but it has also become the most analyzed and investigated SARM so far. After the discovery of its anabolic potential, the primary purpose of S4 aimed to develop an alternative treatment for age-related muscle wasting, osteoporosis, and similar symptoms of hypogonadism, or end-stage renal disease.

Aside from preserving lean body mass, S4 can also help improve it. From a stage 1 study, S4 has provided evidence of a 3.3 lbs increase in less than 90 days with no increases in exercise or change in daily diet. An unintended side effect (or benefit if you will) is the decrease in body fat [Chen et al., 2005; Gao et al., 2005; Kearby et al., 2007]. Decreases in body fat are dependent on the person's genetics, but they will definitely have strong effects on the body's ability to oxidize fatty tissue. S4 was found to not only have a great affinity (potency in binding to androgen receptors), but also present greater anabolic effects than some traditional steroids [Kearby et al., 2007].

Aside from it's muscle-building advantages, S4 won't cause liver damage, can prevent gynecomastia (enlarged breasts in men), and can help boost your overall health.

Although, here are some potential benefits that have been reported anecdotally:

1. Increased Muscle Mass: Andarine is reported to increase lean muscle mass, making it popular among bodybuilders and athletes.

2. Improved Strength: Other than increased muscle mass, users have reported improved strength and power output.

3. Enhanced Endurance: A group of users has reported increased endurance during a high-intensity workout.

4. Accelerated Recovery: Andarine could help consumers recover from workouts more rapidly, allowing them to train more frequently.

5. Reduced body fat: Andarine is reported to increase metabolism and assist in burning fat, potentially leading to a leaner physique.

6. Improved Bone Density: Andarine has been investigated for its potential to improve bone density in people with osteoporosis.

7. Improved joint health: Some consumers report that Andarine can improve joint health and reduce pain associated with inflammation.

8. Improved sleep: Andarine has been reported to help improve sleep quality and reduce the amount of time it takes to fall asleep.

9. Enhanced mood: Some consumers have reported an improvement in their mood, with reduced feelings of anxiety and depression.

10. Improved overall wellness: Andarine may have more health benefits, such as reducing inflammation and improving overall wellness.

Proteinlab sports supplement supplier/wholesaler Malaysia presents!


Be safe and rest assured you are getting 100% authentic products at the lowest price when you purchase at Proteinlab Malaysia.

You can also like our Facebook for more promotion news at:

Proteinlab Malaysia

Or you can follow us on our Instagram page at

Kevinn Khoo