($) USD (Default)
  • ($) AUD
  • (€) EUR
  • ($) CAD
  • ($) NZD
  • (£) GBP

ANDARINE S4 Capsules


Research studies suggest that Andarine S4 Sarm can improve muscle strength and growth whilst preventing muscle wasting, it is also known to increase bone density which may prove useful to those with osteoporosis.

– 60 CAPSULES per Bottle | 10mg Per Capsule –

Choose support supplements PCT, Test Base or Cycle Support with your capsule order and save 10%!

593 in stock

First time customer gets 15% discount code = 1storder

S-4 Andarine Capsules

S-4, commonly known as Andarine, is a Selective Androgen Receptor Modulator (SARM) that has attracted attention for its potential benefits in skeletal muscle growth and performance enhancement. Classified as a SARM, S-4 is noted for its selective binding to androgen receptors, particularly in muscle and bone tissues. This selective binding mechanism is believed to contribute to the increase in muscle size and strength, as well as improvements in physical performance, without the adverse effects associated with traditional anabolic steroids.

One of the primary advantages associated with S-4 Andarine capsules is its potential to increase muscle mass through its high androgen binding affinity, leading to increased muscle tissue size. Additionally, S-4 has been suggested to enhance endurance and stamina, allowing individuals to push through intense workouts with improved vigor and resilience.

Despite its potential benefits, it’s essential to exercise caution when considering S-4 due to safety concerns. Clinical trials of S-4 have been discontinued, signalling that it is not yet approved for human consumption and only for research purposes. Moreover, like other androgen receptor modulator sarm S-4 may impact natural testosterone levels, potentially leading to hormonal imbalances.

  Benefits of S-4 Andarine Capsules

Bone & Muscle Wasting

This particular selective androgen receptor modulator is an excellent compound to avoid muscle wastage and to use as a  bridge to preserve muscle mass gains from anabolic cycles. Research has suggested S-4 Andarine capsules was initially formulated to treat osteoporosis (a bone disease that makes bone density weak and brittle) due to it’s ability to improve bone strength. Further uses have including treating muscle wasting diseases and BPH (benign prostatic hypertrophy) an enlarged prostate. 

Increased Muscle Mass

In laboratory research  S-4 Andarine Capsules has shown promise to increase bone, muscle mass and strength without any additional water weight. It operates by binding to the androgen receptors, choosing bone and muscle selectivity. It works by altering gene expression, which causes a tremendous boost in protein synthesis and body anabolism. Increased vascularity, dry, lean & strong muscles can be expected to develop when undergoing an S4 Andarine cycle. 

Cut & Bulk

Known for its high oral bioavailability, Andarine S4 is highly flexible and can be used to cut, recompose or bulk.

Anabolic Effects

While S-4 Andarine capsules   is less anabolic than other SARMs, however it is still very highly androgenic. S4 Andarine is known as the least anabolic but most androgenic sarm on the market. Androgenic SARMs can cause fat oxidation when bind to the androgen receptor. Animal studies have found it helps loosen stubborn abdominal and visceral fat. Users find their best at cutting down body fat whiles increasing energy, and it is ideal for building lean muscle.

Fat Loss

  Studies on animal models also indicate that the S4 Andarine compound adds great resilience and power even in a caloric deficit.  In addition to weight and fat loss S-4 Andarine Capsules can assist the gain of lean mass. 

Like our S-4 Andarine Capsules? Shop more Andarine S-4 Liquid products here from Direct SARMS


[1] Selective androgen receptor modulator treatment improves muscle strength and body composition and prevents bone loss in orchidectomized rats. Endocrinology. 2005 Nov;146(11):4887-97 by Gao W, Reiser PJ, Coss CC, Phelps MA, Kearbey JD, Miller DD, Dalton JT.

[2]  Therapies for musculoskeletal disease: can we treat two birds with one stone? Curr Osteoporos Rep. 2014 Jun;12(2):142-53. by Girgis CM, Mokbel N, Digirolamo DJ.

Formula: C19H18F3N3O6

Molar mass: 441.357 g/mol


Do I need PCT & other supplements?

Post-cycle therapy (PCT) is deemed necessary when taking S-4 Andarine capsules, according to scientific research. The administration of PCT alongside S-4 SARM has been shown to aid in the preservation of muscular mass, fat burning, and an elevation in mood and energy levels.

The use of certain selective androgen receptors (SARMS) may lead to temporary suppression of natural testosterone levels. Therefore, it is imperative to restore testosterone levels to their baseline after completing a SARMS cycle in order to maintain the achieved results. The duration of the PCT should correspond to the duration of the SARMS cycle length.

While a Post Cycle Therapy is not a compulsory requirement during SARMS usage, it is prudent for science researchers to opt for PCT for a duration of at least four weeks, as a precautionary measure. Accordingly, some bodybuilders advocate for the incorporation of a test booster as part of their regimen.

Interested in Sarms Supplements? Check out post cycle therapy, cycle support & test base here.


DISCLAIMER: These products are intended solely as a research chemical only. This classification allows for their use only for research development and laboratory studies. The information available on our Direct Sarms website is provided for educational purposes only. These products are not for human or animal use or consumption in any manner. Handling of these products should be limited to suitably qualified professionals. They are not to be classified as a drug, food, cosmetic, or medicinal product and must not be mislabelled or used as such.


S4 Andarine HPLC Certificate