The purpose of this study was to determine the feasibility of the blended learning-based INOLYN learning model that had been designed for the basics of beauty and SPA subjects, the practicality of the blended learning-based INOLYN learning model that has been designed for the basics of beauty and SPA subjects, and the effectiveness of the blended learning-based INOLYN learning model that has been designed for the basics of beauty and SPA subjects. This type of research is called research and Development (R&D) research. This development research was conducted at SMK Negeri 10 Medan. The subjects in this study were students of Class X Beauty at SMK Negeri 10. The object of research was manual facial skin care materials. The results showed that: (1) the INOLYN learning model based on blended learning in the basics of beauty and SPA subjects was declared feasible to use; (2) the INOLYN learning model based on blended learning in the basics of beauty and SPA subjects is practically used; and (3) the INOLYN learning model is effective in increasing the learning outcomes of the basics of beauty and SPA compared to using the discovery learning model because tcount = 2.04 > ttable = 1.66, so it is concluded that the learning outcomes of students using the INOLYN learning model are higher than the learning model of discovery learning. In this case, the INOLYN learning model based on blended learning is 72.60% higher than that using the discovery learning model, which is 65.33%.