honestly, you should stack them both.. they are a perfect bridge stack... both companies you listed are very high quality... uniquemicals is cheaper and has an excellent product... If you only want to dose one, it just depends on your goals... If I had to choose just one, I would pick ostarine, merely because s4 may cause the vision sides, but as long as you dose it properly then you will be fine... SARMS are the TRUTH man... you will love them!
honestly, you should stack them both.. they are a perfect bridge stack... both companies you listed are very high quality... uniquemicals is cheaper and has an excellent product... If you only want to dose one, it just depends on your goals... If I had to choose just one, I would pick ostarine, merely because s4 may cause the vision sides, but as long as you dose it properly then you will be fine... SARMS are the TRUTH man... you will love them!