I took the risk and bought some of their nasal sprays while they were on sale. Nootropics tend to be more subjective than other peps/supps imo, but the Semax so far does seem to give me the positive effects at 500mcg. The sprayers are metered as well supposedly.
I have Selank and Adamax as well, but haven't tried them yet.
I did contact them via email asking what was actually in the spray because I wanted to know how much saline if any, bac water, preservatives, etc. and they let me know they would contact the owners to see if they could have the actual blend put on the website.