On screen it is virtually imperceptible to the human eye, but it enters the subconscious.
And this is what Subliminal Flash does, it is an application that is used to display this type of message on your computer screen.
The message length is 10 milliseconds, although this depends on the capability of the computer running the program.
The user can select the location of the messages and their contents: quit smoking, driving better, loyalty, strength, happiness, alcoholism, prosperity and so on.
Seven day trial version.