Hi since i’m pretty new to this and making my second purchase i was hoping that someone could just tell me is there a difference between for example Instant Openness and Instant Openness “To Go”?
Also my first purchase of IO came in 2 bottles, one marked Instant Openness and the other marked MX438, why is this?
Thanks for replies. 
They come in two sizes.
To-go is the small 5 ml size. It has about 40 sprays in it.
The regular size is 30 ml which is about 200 sprays.
The nozzle’s are of a different size so although the formula and amount of mones are the same one spray will deliver around 83% of a full spray. So your dosage may be just slightly different between the two sizes. Other then that they are exactly the same and that small difference is not substantial.
Tisha
The MX438 is an experimental formula which AD hopes you will test on its own and report back on what you find with it.
Look in the MX Test Results forum for a dedicated reporting thread, which may have more info and post your findings there. 
to go can also mean travel size in which u put it in ur pocket and u can spray whenever