The purpose of this research aims to analyze and explain the effect of product quality,
service quality, customer trust, and promotion on customer loyalty. This research uses a
quantitative approach with survey methhod. The research sample consists of 110
respondents taken through purposive sampling with the required criteria. According to
simultant test (F test), proauct quality, service quality, customer trust, and promotion
simultaneously have a significant effect on customers' loyalty with the variability of
42.2%. Meanwhile, the partial test (t-test) shows that all variables partially have a
significant effect on customers' loyalty.