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All Journal International Journal of Management Science and Information Technology (IJMSIT)
Shandya Aissy Syafaq
Universitas Muhammadiyah Semarang
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

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The Mediating Role of Brand Image in Celebrity Endorser and E-WOM Effects on Gen Z's MS GLOW Purchase Decisions in Semarang Shandya Aissy Syafaq; Firdaus Firdaus; Zailani Abdullah
International Journal of Management Science and Information Technology Vol. 6 No. 1 (2026): January - June 2026
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA), Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijmsit.v6i1.6625

Abstract

This study examines the mediating role of Brand Image in the relationship between Celebrity Endorsers, Electronic Word of Mouth (E-WOM), and purchasing decisions among Generation Z consumers of MS GLOW skincare products in Semarang, Indonesia. Employing a quantitative approach with twenty measurement indicators across four constructs and using an accidental sampling technique, the study investigates how different communication sources influence Gen Z consumers’ perceptions and purchase behavior in the local skincare market. The findings reveal that Celebrity Endorsers neither significantly shape Brand Image nor directly influence purchasing decisions, indicating that celebrity-based persuasion has limited effectiveness for this consumer segment. In contrast, E-WOM exerts a positive and significant effect on both Brand Image and purchasing decisions, underscoring the importance of peer-generated information in building trust and guiding consumer choice. Brand Image is also found to significantly influence purchasing decisions and partially mediate the relationship between E-WOM and purchase behavior, while no mediating effect is observed in the relationship between Celebrity Endorsers and purchasing decisions. These results empirically demonstrate that, within the context of Gen Z skincare consumption in Semarang, peer communication plays a more decisive role than celebrity endorsement. Theoretically, this study refines branding and consumer behavior literature by clarifying the differentiated influence pathways of E-WOM and endorsement cues. Practically, the findings suggest that skincare brands targeting Gen Z should prioritize peer-based digital engagement strategies over celebrity-driven promotion.
Co-Authors Firdaus Firdaus Zailani Abdullah