Make sure you get everything you need from sarmsx to insure you have the highest quality. What exactly are your goals here? S4 stacks very well with LGD to give a very powerful combo for mass and strength
1-12 lgd-4033 10 mg day dosed once a day in the a.m.
1-12 S4 50 mg day... split doses... 25 mg in the a.m. and 25 mg 4-6 hours later
S4 is a good choice. Mk677 is another good one to stack. I just love mk677 so I try to throw it in whenever possible. Really helps with calorie intake and sleep, brother.