The awareness of halal cosmetics products has become an essential element in our daily lives, especially Muslims. Hence, this paper highlighted the factors of buying intentions on halal cosmetics among university students. Furthermore, the purpose of this study is to identify the most important element influencing halal cosmetics buying intentions including knowledge, religion, and halal certification. In addition, this study also determined the relationship between knowledge, religiosity, and halal certification towards buying intentions among university students. The researchers adopted a quantitative approach in this research by distributing questionnaires to 292 participants. The frequency, descriptive, and regression analyses were analysed using SPSS Software to answer the objective of the study. Thus, the outcome of this study showed a strong relationship between buying intentions with knowledge and religiosity. Meanwhile, halal certification showed no relationship towards buying intentions on halal cosmetics products. With this discovery, the future research work may be better described.