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S4 25mg 


Like most other SARMS, S4 is orally bioavailable and an active partial agonist for selected androgen receptors and helps in boosting lean muscle mass and in faster oxidation of stored fat. In simple terms, it is anabolic and partially androgenic like testosterone but with minimal side effects. We say minimal because at large doses and cycles, it can cause suppression and it can even enlarge your prostate. And then the vision problems start to outweigh the benefits. However, most of the sides are reversible and with a recommended dose and proper PCT. You should be able to achieve excellent results with it without the nasties. 


S4 is the Winstrol of the SARM world. That’s what makes this such an effective drug to add to a stack irrespective of what you are trying to achieve. The first clinical trial reported an average gain of 3.3 lbs of lean muscle mass in a 90-day period. This was at ridiculously low doses. If you are on a bulking cycle, it will reduce bloat and make your gains look rock hard, ripped and vascular. If you are cutting, you will look like you have been on a Var and Winny cycle for weeks. Also, S4 helps in oxidizing stored fat while protecting your hard-earned muscle. Be prepared for strength gains that will break your lifting thresholds. Personal bests have been achieved by almost every athlete who has cycled S4. The selective androgenic effects mean that there is zero effect on your cardiac muscles. Your cholesterol levels are not elevated and your liver values remain constant throughout the cycle. 


At 50mg/day, most people experience zero to mild side effects. The most notable ones that are experienced at higher doses are responsible for the bad rap that S4 has gotten in recent times. There are two in particular. Yellow tint to the vision: Some people seem to develop this side effect sooner than others. There’s a yellow tint to the vision that can fluctuate depending on the ambient lighting. At times, it is more pronounced. Most people who have reported this side effect have dosed S4 at more than 50mg/day. Night vision: Some users report that they have difficulty adjusting to night vision. So, when they go from a brightly lit place to a dark one, they experience temporary blindness, for about 3-4 seconds. Both these sides are temporary and will fade as soon as you stop using S4. If you experience any of these and it becomes bothersome, just stay off the drug for a day or two. Even better, use the 5-2 dosing protocol. 



8-12 Week cycle 

Liver support: Built Protect (best) or NAC (good) 

Post cycle: Built Recovery 

Weeks 1-12 

ANDARINE- 1 pill am, 1 pill pm 

Liver support- 1 pill am, 1 pill pm 

Week 12-16 


Built Recovery -1 pill am, 1 pill pm 

Liver support- 1 pill am, 1 pill pm 

  • For 8 week cycle just make sure to follow week 12-16 instructions when you stop the ANDARINE at week 8 


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