Detection of UV filters in cosmetic products (sunscreen) by HPTLC and confirmation by HPTLC-MS

Sunscreen products contain UV filters that absorb or reflect a part of the sun’s ultraviolet (UV) radiation. The identification of UV filters in cream can be a challenging task because of the multiple ingredients used in the cosmetic formulation. After simple sample preparation followed by HPTLC separation, the presence of the target compounds can be confirmed by mass detection.