Comparative of A,M,L Company’s Nature Color on a Professional Coloring Chart

It's human nature to crave beauty, and to this day, many people spend a lot of time taking care of their appearance. The desire to be beautiful has led to the rapid development of the beauty industry, but it is not supported by the professional knowledge of hair salon workers. This study aims to help the beauty industry by comparing and analyzing the differences between the hair color charts of various hair dye companies by quantifying the lightness (L*), redness (a*), and yellowness (b*) of their non-reflective natural hair dyes to improve the professionalism of hair salon workers and increase customer satisfaction. The colorimeter (CR-400, Chroma meter) used for the color comparison was a Konica minolta (Tokyo, Japan), and the values of lightness (L*), redness (a*), and yellowness (b*) of the hair color charts of Company A, Company M, and Company L were measured five times and compared. The results showed that Company M had the highest brightness and Company L had the lowest, while Company A had the highest redness and Company L had the highest yellowness. Although there are limitations in that the selected hair dye brands and colors were not diverse, and comparisons with actual dyeing results could not be made, this study is expected to help identify the differences between natural hair dyes, and to increase the professionalism of hair salon workers to increase trust with customers, which will benefit the Korean beauty industry.