DETECTION AND QUANTIFICATION OF HYDROQUINONE IN WHITENING CREAMS USING UV-VISIBLE SPECTROPHOTOMETRY: HEALTH IMPLICATIONS AND REGULATORY CONCERNS. IJNOT [Internet]. 2025 Sep. 5 [cited 2025 Sep. 6];1(2):37-49. Available from: https://ijnot.com/index.php/IJNOT/article/view/13