The purpose research to determine the effection of halal label, realization, product price and respect on the trademark with decision of purchase cosmetic product for consument Sariayu Martha Tilaar in Binjai. The total of samples in this research are 100 respondents. This research uses a quantitative research. The method of data analysis was conducted using multiple linear regression analysis. The results showed that the variables simultaneously on the halal label , halal realization, product pricing, and respect for the trademark with the decision to purchase in Binjai get the effects to buy cosmestic Sariayu Martha Tilaar. The variabel of effection of halal label, realization halal, product price and respect on the trademark with decision of purchase cosmetic product for consument Sariayu Martha Tilaar in Binjai are individually not significant effect on purchasing decisions. While the price of individual products has positive influence on purchase decisions cosmetics Sariayu Martha Tilaar. The result of coefficient determination test indicates that the variable of halal label, realization, product price and respect on the trademark with decision of purchase cosmetic product by 15.8% (low), while the balance of 84.2% is influenced by other variables not examined in this research.