KOL Credibility Influence on Generation Z TikTok Skincare Purchase Decision-Making Process: Mediated by Brand Image and Digital Consumer Behavior

Authors

  • Mochammad Revo Izqulby Bisnis Digital, Kampus UPI Tasikmalaya, Universitas Pendidikan Indonesia, Indonesia
  • Syti Sarah Maesaroh Bisnis Digital, Kampus UPI Tasikmalaya, Universitas Pendidikan Indonesia, Indonesia
  • Asep Nuryadin Bisnis Digital, Kampus UPI Tasikmalaya, Universitas Pendidikan Indonesia, Indonesia

DOI:

https://doi.org/10.24256/kharaj.v7i4.8239

Keywords:

KOL Credibility, Purchase Decision-Making Process, Skincare, TikTok, Generation Z

Abstract

This study aimed to analyze the influence of Key Opinion Leader (KOL) Credibility on TikTok on the Purchase Decisions-Making Process of skincare products among Indonesian Generation Z, examining the mediating roles of Brand Image and Digital Consumer Behavior. Employing a quantitative, causal-correlational survey design, data were collected from 265 Indonesian Generation Z respondents (ages 15-25, 79.2% female, 90.2% daily TikTok users) interested in skincare, with KOL Credibility measured by expertise, trustworthiness, and attractiveness; Brand Image by brand associations; Digital Consumer Behavior by information search, engagement, and purchase intention; and Purchase Decision-Making Process by frequency and probability of purchase, analyzed using SPSS and PROCESS Macro Hayes. Results indicated that KOL Credibility significantly influenced Purchase Decision Making-Process directly (Direct Effect = .116, p=.005), and also significantly impacted Brand Image (.625) and Digital Consumer Behavior (.460), both of which positively and significantly influenced Purchase Decision- Making Process (.231 and .620 respectively). Bootstrapping confirmed the mediating roles of Brand Image (.144, CI: .064-.214) and Digital Consumer Behavior (.285, CI: .190-.374), with Digital Consumer Behavior showing a significantly larger mediating contribution. Implications suggest that skincare brands should focus on credible KOLs and content strategies that foster active digital engagement, contributing to digital marketing theory by highlighting the dominance of the Digital Consumer Behavior mediation pathway among young audiences

References

Asosiasi Penyelenggara Jasa Internet Indonesia (APJII). (2024). APJII: Jumlah pengguna internet Indonesia tembus 221 juta orang. Retrieved from https://apjii.or.id/berita/d/apjii-jumlah-pengguna-internet-indonesia-tembus-221-juta-orang

Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (5th ed.). SAGE Publications.

De Veirman, M., Cauberghe, V., & Hudders, L. (2017). Marketing through Instagram influencers: the impact of number of followers and product divergence on brand attitude. International Journal of Advertising, 36(5), 798–828. https://doi.org/10.1080/02650487.2017.1348035

Edwar, M., Prasetyo, A. P., & Mustika, D. M. (2018). The Factors that Affecting the Product Purchasing Decision Through Online Shopping by Students of Surabaya State University. International Journal of Educational Research Review, 3(2), 13-20. https://doi.org/10.24331/ijere.432350

Erwin, E., Saununu, S. J., & Rukmana, A. Y. (2023). The influence of social media influencers on generation Z consumer behavior in Indonesia. West Science Interdisciplinary Studies, 1(10), 1028-1038. https://doi.org/10.58812/wsis.v1i10.317

Firamadhina, F. I. R., & Krisnani, H. (2020). Perilaku generasi Z terhadap penggunaan media sosial TikTok: TikTok sebagai media edukasi dan aktivisme. Share: Social Work Journal, 10(2), 199-208. https://doi.org/10.24198/share.v10i2.31443

Hair, J. F., Black, W. C., Babin, B. J., & Anderson, R. E. (2010). Multivariate data analysis (7th ed.). Pearson Prentice Hall.

Halimah, T., & Hidayat, A. (2025). The impact of social media influencer Credibility on consumer purchase decisions: A study on Originote Skincare. Economic Education Analysis Journal, 14(1), 1-24. https://doi.org/10.15294/2khxw478

Hayes, A. F. (2018). Introduction to mediation, moderation, and conditional process analysis: A regression-based approach (2nd ed.). The Guilford Press.

Hovland, C. I., Janis, I. L., & Kelley, H. H. (1953). Communication and persuasion; psychological studies of opinion change. Yale University Press.

Hudders, L., De Jans, S., & De Veirman, M. (2020). The commercialization of social media stars: A literature review and conceptual framework on the strategic use of social media influencers. International Journal of Advertising, 40(3), 327–375. https://doi.org/10.1080/02650487.2020.1836925

Keller, K. L. (1993). Conceptualizing, measuring, and managing customer-based brand equity. Journal of Marketing, 57(1), 1-22.

Kementerian Koordinator Bidang Perekonomian Republik Indonesia. (2024). Hasilkan produk berdaya saing global, industri kosmetik nasional mampu tembus pasar ekspor dan turut mendukung penguatan blue economy. Retrieved from https://www.ekon.go.id/publikasi/detail/5626/hasilkan-produk-berdaya-saing-global-industri-kosmetik-nasional-mampu-tembus-pasar-ekspor-dan-turut-mendukung-penguatan-blue-economy.

Kotler, P., & Armstrong, G. (2016). Principles of marketing (14th ed.). Pearson - Prentice Hall.

Leite, F. P., & Baptista, P. de P. (2021). The effects of social media influencers’ self-disclosure on behavioral intentions: The role of source credibility, parasocial relationships, and brand trust. Journal of Marketing Theory and Practice, 30(3), 295–311. https://doi.org/10.1080/10696679.2021.1935275

Lou, C., & Yuan, S. (2019). Influencer marketing: How message value and Credibility affect consumer trust of branded content on social media. Journal of Interactive Advertising, 19(1), 58-73. https://doi.org/10.1080/15252019.2018.1533501

Mahri, A. J. W., Juliana, J., Monoarfa, H., Rohepi, A. P., & Karim, R. (2024). Integrating country of origin, Brand Image and halal product knowledge: the case of the South Korean skincare in Indonesia. Journal of Islamic Marketing, 15(1), 244-259. https://doi.org/10.1108/JIMA-12-2021-0390

Naveen Kumar, R., Janani, M., Ramadevi, V., Meenakshi Saratha, M., Sethuraman, G., & Muthu Kumar, T. (2025). The impact of social media influencers on consumer purchasing behavior in social commerce platforms. In A. Hamdan, A., & U. Braendle (Eds.), Harnessing AI, machine learning, and IoT for intelligent business (Studies in Big Data, vol. 555, pp. Springer, Cham. https://doi.org/10.1007/978-3-031-67890-5_41.

Rijnhart, J. J. M., Lamp, S. J., Valente, M. J., et al. (2021). Mediation analysis methods used in observational research: A scoping review and recommendations. BMC Medical Research Methodology, 21(1), 226. https://doi.org/10.1186/s12874-021-01426-3

Rizomyliotis, I., Lin, C. L., Konstantoulaki, K., & Phan, T. (2024). TikTok short video marketing and Gen Z's purchase intention: Evidence from the cosmetics industry in Singapore. Journal of Asia Business Studies, 18(4), 930-945. https://doi.org/10.1108/JABS-04-2023-0138

Schouten, A. P., Janssen, L., & Verspaget, M. (2019). Celebrity vs. Influencer endorsements in advertising: the role of identification, credibility, and Product-Endorser fit. International Journal of Advertising, 39(2), 258–281. https://doi.org/10.1080/02650487.2019.1634898

Sugiarto. (2024). The effect of influencer advertising on the intention to buy Wardah cosmetics in Indonesia. Innovative Marketing, 20(1), 88-100. http://dx.doi.org/10.21511/im.20(1).2024.08

Thomas, E., & Setyobudi, W. T. (2024). Unveiling the dynamics: How social media influencer and variety seeking drive brand switching behavior among Gen Z. In A. Hamdan, A., & U. Braendle (Eds.), Achieving sustainable business through AI, technology education and computer science (Studies in Big Data, vol. 159, pp. Springer, Cham. https://doi.org/10.1007/978-3-031-71213-5_46

We Are Social. (2024, January 31). Digital 2024: Global Overview Report. Retrieved from https://wearesocial.com/id/blog/2024/01/digital-2024/

Xiong, L., Cho, V., Law, K. M., & Lam, L. (2021). A study of KOL effectiveness on brand image of skincare products. Enterprise Information Systems, 15(10), 1483–1500. https://doi.org/10.1080/17517575.2021.1924864

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Published

2025-11-06

How to Cite

Izqulby, M. R., Syti Sarah Maesaroh, & Asep Nuryadin. (2025). KOL Credibility Influence on Generation Z TikTok Skincare Purchase Decision-Making Process: Mediated by Brand Image and Digital Consumer Behavior. Al-Kharaj: Journal of Islamic Economic and Business, 7(4). https://doi.org/10.24256/kharaj.v7i4.8239

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