CPH4 is a substance that was featured in the 2014 movie Lucy, directed by Luc Besson and starring Scarlett Johansson. According to the plot of the movie, CPH4 is a powerful synthetic drug that increases the amount of information the brain can process, allowing the user to unlock unutilized portions of the mind, thereby resulting in enhanced cognitive and physical abilities.
However, in reality, CPH4 is not a real compound. In an interview, Luc Besson admitted that the drug is wholly fictional and was created to serve the movie's storyline. The concept of CPH4 was primarily based on the idea that humans use only a small percentage of their brain's capacity, a myth that has been debunked by neuroscience. So, while CPH4 makes for a great plot device in a science fiction film, it does not actually exist.
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