I have IS 1x which is an old version from an year ago and I recently wanted a stronger version of this and ordered IS 4X. Something seems to be different with IS 4X. The earlier version used to be effective immediately. But the 4x version doesn’t seem to have immediate effects. Rather, after a day of wearing it and a shower and scrubbing it off, THEN I see the effects!! Just when I knew that I dont have any IS on me, I feel like I am getting lots of hits.
Am I dreaming 
? Is it an extremely slow release version with such strength that even a shower wont take it off? 
… this is perplexing… I have IS2X, well did I just mixed a test 5ML so I’m now out 
but 2X works great… perhaps you are not feeling self effects and freaking out a lil?
Hi DJ, I have been using it for a couple of days now. Maybe its because I mixed it with IH and that might had let me to notice the IH effects more. But do you know if IS 4X is a slow release version when compared with 1x?
Should be much faster as it is 4X mcg of IS in same amount of Perfumers alcohol
My thoughts are that IS (Instant Shine) will make you appear nice and good but will also decrease your alpha presence.
IS 4x, in my opinion should be complemented with some alpha phero mix like Instant Gentleman or A314. Heck…even 1 spray of TUTH will do. But IS 4x alone will make you look weak and not so important.
Perhaps after you have showered the next day the amount of IS left on you is less than the 4x spray you used the day before. Perhaps for you 2x would do the magic.
Try putting half spray of 4x next time and see if it makes any difference.