The student's choice of the topic and research question is well-justified, as they have explained personal interest and relevance. They have highlighted their curiosity about the effect of storage temperature on the stability of Vitamin C serum, a popular skincare ingredient used by friends and family. Moreover, they have shown global relevance by addressing the recent trend of heating up serums on social media and discussing the broad use vitamin C in skincare products. Additionally, the student has demonstrated personal input and strong initiative in designing and conducting the study, explaining their initial ideas, decision-making process, and adaptation of the method based on preliminary experiments.
