Semax vs. N-Acetyl Semax Amidate for Intranasal Use.

I have been doing some research into Semax and Selank nasal sprays and some of the stuff I have read has led me to believe that making a nasal spray out of regular Semax is much less stable and effective compared to N-Acetyl Semax Amidate, and same goes for Selank.

Does anyone have experience with Semax or Selank Nasil sprays? If so, do you think that regular Semax or Selank will work well, or do you need to use N-Acetyl Semax Amidate?

I don't really have any interest in doing either of these peptides Subq because there seems to be a universal agreement that intranasal is the way to go.

Regular semax and selank are not too hard to find, but N-Acetyl Semax Amidate seems to be much harder, and apparently is more expensive so I am hoping that regular Semax will work just fine, but I do not want to waste money and resources on something that does not work very well.

Thank you.