As you're about

The video likely performed well due to its intriguing and unconventional "Japanese hair cleaning method" hook, promising a desirable outcome (oil-free hair for three days) with simple, accessible ingredients and steps.

The video demonstrates a hair cleaning method involving sprinkling salt into a basin of water, soaking hair in it, then washing with shampoo and rinsing. This method is claimed to keep hair oil-free for three days.