This study aims to analyze the effects of halal certification, BPOM authorization, and streamer product knowledge on cosmetic purchasing among Generation Z in Pragaan. This study employed a quantitative explanatory approach involving 100 respondents selected through purposive sampling. Data were collected through questionnaires and analyzed using multiple linear regression analysis with the assistance of SPSS version 25. The results indicate that halal certification, BPOM authorization, and streamer product knowledge each have a positive and significant effect on cosmetic purchasing. Simultaneously, the three variables also have a positive and significant effect on cosmetic purchasing. Thus, cosmetic purchasing among Generation Z in Pragaan is influenced by considerations of product halal assurance, safety assurance through BPOM authorization, and product information communicated by streamers.
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