However, here's what we know:
* Hair products of the time: Popular hair products during the 1950s included grease, pomade, and hair tonic. These products helped hold the hair in place, create a sleek look, and often had a shiny finish.
* James Dean's style: Dean's style was generally slicked back with a side part, indicating he likely used a product with strong hold.
* No specific brand mentioned: There's no documented evidence of a specific brand Dean used.
It's highly likely that Dean used a combination of hair products common during his time, likely a grease or pomade to achieve his signature look. However, without specific information, we can only speculate about the exact product he used.