no, you would not be required to use a pct but i can tell you that running lgd 4 weeks is beyond pointless... it does no even begin to start kicking in until week 3... it literally makes no sense whatsoever... what are your stats? age/height/weight/body fat? goals? i can help you set up a very strong cycle... the very best sarms you can find are located at
www.sarmsx.com