The study analyzes how the introduction of digital solutions affects internal efficiency and the degree of customer loyalty in the nail service segment. The aim of the work is to systematize existing electronic tools, assess their separate and combined impact on key business metrics, and formulate a conceptual framework for the quantitative evaluation of such effects. The empirical base relies on a review of specialized publications from recent years and accompanying industry reports with up-to-date statistics. The study performed an analysis and classification of digital technologies applicable to the organization of nail salons, identifying their role in improving operational procedures and strengthening customer interactions. The findings indicate that the synergistic use of online booking systems, CRM solutions, and digital marketing tools contributes to the reduction of administrative costs, the rational use of resources and, consequently, an increase in customer retention rate (CRR) and customer lifetime value (LTV). The result of the work is the confirmation of the hypothesis of a synergistic effect, in which the growth of operational efficiency acts as a mediator in enhancing customer loyalty. The proposed integrated model makes it possible to clearly demonstrate the relationship between the volume of digital investments and the financial performance of enterprises. The practical significance of the study is manifested in its applicability for owners and managers of beauty businesses, as well as for developers of software products oriented toward this sector.