Natural Product-based Skin Whitening Agents: A Comprehensive Review

Introduction: Many individuals are interested in skin whitening creams as a lighter complexion is in great demand since time immemorial. In both males and females, hyperpigmentation is one of the aesthetic issues, in which dark spots or patches appear on the skin, overproduction or accumulation of melanin within the skin layer is the probable cause of this hyperpigmentation. Corticosteroids, hydroquinone and ammonium chloride, the traditional pharmacological agents, produce light skin colour by inhibiting the process of melanogenesis or melanocyte maturation. Methodology: The investigation focuses on a number of potent natural compounds utilised in whitening creams, including arbutin, kojic acid, hydroquinone, and other plant extracts. It also discusses how effectively they function in terms of lowering melanin levels, which have been compared to other formulations' administration duration or treatment time scales and additional details on the formulation features of skin-whitening creams, including how to choose vehicle systems, additional ingredients, and active compounds. The data was collected from PubMed, Web of Science, Google Scholar and Wiley Online Library. Results and Discussion: This review revealed that herbal products are safer, less toxic and equally efficient as synthetic components utilised for the formulation of skin whitening cream. Various in vitro and skin 3D models like VISIA® 3D Skin Complexion Analysis System and Photoscopic Dermoscopy (PAD) have also been discussed, and it is observed that collectively these standards play a vital role in ensuring and maintaining high-quality standards across products. Conclusion: This study provides a wealth of knowledge about the herbal plant extracts responsible for skin whitening, along with their pathways and evaluations.