* Pomade: This was the most common product. It was a thick, oily paste that provided hold and shine. Popular brands included Murray's Pomade and Brylcreem.
* Hair Tonic: This was a liquid product that was applied to the hair and scalp to add shine and control.
* Hair Oil: Often used in conjunction with pomade or tonic, hair oil added even more shine.
* Petroleum Jelly: This was sometimes used as a substitute for pomade or hair oil, especially when money was tight.
The specific products used varied by individual and availability. The key to the greaser look was using enough product to achieve a smooth, slicked-back style that was both shiny and stiff.
It's important to note that these products could be very harsh on the hair and scalp. They often contained ingredients that could cause dryness, breakage, and even hair loss.