Assuming you are asking why drug dealers use baby formula, there are a few reasons.
Firstly, baby formula is expensive. This means that selling it can be quite profitable for drug dealers. Secondly, baby formula is often stolen from stores. This means that it is easy for drug dealers to get their hands on it. Finally, baby formula can be used to cut other drugs. This means that drug dealers can make more money by selling a smaller amount of the other drug.