A New HPLC-DAD Method for the Concurrent Determination of Hydroquinone, Hydrocortisone Acetate and Tretinoin in Different Pharmaceuticals for Melasma Treatment

A new simple and robust HPLC-DAD method was developed for the concurrent analysis of hydroquinone (HQ), hydrocortisone acetate (HCA) and tretinoin (TRN) triple combination for the first time using an Inertsil ODS 3-C18 column (150 mm × 4.6 mm, 5 μm particle size) column with 0.05 M phosphate buff…