Hello, I have been applying Emu or Squalane Oil over the GHK serum with nice results. I also enjoy using the GHK serum and putting over it the Two Timing Tightener. My question is: Can I put the GHK on, then the Two Timing Tightener and then the Emu or Squalane oil on last, making my application a three step process? I don't know if the oil will stop the tightening of the Two Timing Tightener or not. Thank you very much!This message has been edited. Last edited by: Moncherie,