Method for measuring elasticity of hair using shape-retaining pressure

The present invention relates to a hair elasticity estimation method which can directly, non-invasively, and repeatedly measure hair elasticity in the human body and can perform a reproducible and accurate quantitative analysis of hair elasticity. The use of the estimation method according to the present invention not only can save the time and costs required to estimate the elasticity of hair, but also enables a highly reliable quantitative analysis, thus contributing, as a means for guaranteeing quality, to product development.