Knowing that this research still has some limitations, the researcher tries to propose several suggestions for any researcher who might want to conduct similar research in the future. In order to overcome the first limitation, the researcher suggests that the future researcher might use additional theory which also covers other factors that significantly influence the purchase decision. To overcome the second limitation, the researcher suggests that more time should be allocated so that more inputs from the customers can be gathered. To overcome the third limitation, the population can be broaden to the whole area of Indonesia, where So Color product is sold.