Ingredients: Active Ingredients: Glycolic Acid 5%, Hydroquinone 2%, Kojic Acid 2%. Other Ingredients: Water, Hydroxyethylcellulose, Licorice Root Extract, Willow Bark Extract, Imidazolidinyl Urea.Usage: For all skin types. This efficient spot fader successfully treats hyperpigmentation by surpressing melanocyte (pigment cell) activity while accelerating exfoliation. Applied daily (and followed by proper sun protection, of course!), the serum will diminish dark spots in a matter of weeks. May not be suitable for sensitive skin, patch test first. Do not use this product if you are pregnant or nursing.