This study studied the influence of beauty influencers, who act as supporters of cosmetics companies, on the purchase intention of cosmetics by consumers using Instagram content. To this end, we focused on the influence of demographic characteristics of consumers exposed to product evaluation contents of beauty influencers acting as cosmetics company supporters on purchase intention. The research data questionnaire surveyed a total of 15 items in 237 parts. Frequency analysis, factor analysis, independent t test, ANOVA, and multiple regression analysis were used for data analysis, and SPSS 23.0 was used for analysis. As a result of researching purchase intention according to product introduction through Instagram contents of a specific account HAJIN_21 Beauty Influencer, gender did not have a statistically significant positive effect, and final education was statistically influenced on purchase intention. It was found to have a significant positive (+) effect. As a result, it was found that final education was an important factor in purchase intention. Furthermore, it is expected that this study can be used as a basic data in the direction of promotion using cosmetics companies supporters.