Why is Nizoral considered a big three?

[oldschoolplaya]

Has there ever been any any studies done that this shampoo is anything but snake oil? It isn't even marketed for hair loss. Why would a company not market their shampoo for hair loss if it had such amazing results? Everyone uses it as a supplement for the other big 2... Has anyone actually maintained/grown hair using only it?

Just because someone had good results using the big 3 doesnt prove jack that it had anything to do with nizoral.