Everyone knows how to wash their hair: just apply shampoo, rinse thoroughly, condition, and wash again. However, even after following all these steps, many people still find their hair ends dry and brittle while their scalp quickly becomes greasy. Recently, a hair salon in New York caused a stir in the beauty world when it "uncovered" a new shampooing technique that helps hair become as clean and smooth as possible. This method is curiously named the "sandwich-style shampoo."

When it comes to South Korea, the public always thinks of skin that is supple, smooth, and younger than its actual age. Even in harsh weather, freezing winters, or low humidity, their skin maintains its characteristic plumpness, leaving many curious about their secrets. In fact, Korean women are renowned for their disciplined approach to beauty, from skincare routines and product selection to establishing healthy lifestyle habits.

Everyone knows how to wash their hair: just apply shampoo, rinse thoroughly, condition, and wash again. However, even after following these steps, many people still find that their hair ends are dry and brittle while their scalp quickly becomes greasy. Recently, a hair salon in New York caused a stir in the beauty world by "uncovering" a new shampooing technique that helps hair become as clean and shiny as possible. The method is called by the intriguing name: "sandwich shampooing."