International Journal of Management Science and Information Technology (IJMSIT)
Vol. 6 No. 2 (2026): July - December 2026

Skintific Purchase Decisions Among TikTok Users in Purwokerto: The Role of Influencer Marketing, e-WOM, Brand Image, and Product Quality

M Rizki Bahtiar (Universitas Muhammadiyah Purwokerto)
Totok Haryanto Totok Haryanto (Universitas Muhammadiyah Purwokerto)
Erny Rachmawati (Universitas Muhammadiyah Purwokerto)
Hengky Widhiandono (Universitas Muhammadiyah Purwokerto)



Article Info

Publish Date
12 Aug 2026

Abstract

This study aims to examine the influence of consumer purchasing decisions of Skintific skincare products in Purwokerto with the variables of influencer marketing, electronic word of mouth, brand image, and product quality. Quantitative data collection using Google Forms with a Likert Scale of 1-5. The research population is residents of Purwokerto who have purchased Skintific skincare products and are actively using TikTok. Sampling used a non-probability method with a purposive sampling technique. The Lemeshow method was used to determine the minimum number of samples and and the final sample consisted of 130 respondents. This study uses the Construct Validity and Reliability Test, Discriminant Validity of Fornell-Larcker and HTMT criteria, Inner VIF, Model Fit, R-Square and Hypothesis Test. The data were analyzed using the SmartPLS 3. The results of this study showed that all variables were positively related to purchase decisions, influencer marketing (β=.334), electronic word of mouth (β=.276), brand image (β=.357), and product quality (β=.306), all p<.001; R²=.643. In this study, all variables can influence purchasing decisions with the findings of brand image as the variable that has the highest influence. The findings indicate the importance of brand image consistency in Skintific communication on TikTok. This study contributes to the digital marketing literature by providing empirical evidence on the effects of influencer marketing, e-WOM, brand image, and product quality on purchase decisions. However, this study is limited to TikTok users in Purwokerto.

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Journal Info

Abbrev

IJMSIT

Publisher

Subject

Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

Description

The development of science related to good technology, information, and communication, both theoretically and empirically has proven to have a positive impact on various aspects of people lives. The development of the science of Information and Communication Technology provides many benefits to ...