Pharmacist Heldfond's Age Spot Formula is made from: Hydroquinone 2%. Other Ingredients:Water, Mineral Oil, Glycerin, Petrolatum, Stearyl Alcohol, Cetearyl Alcohol, Dicetyl Phosphate, Ceteth-10 Phosphate, Steareth-10, Ethylhexyl Methoxycinnamate, Benzophenone-3, Steareth-2, Sodium Sulfite, Sodium Metabisulfite, Citric Acid, Vaccinium Myrtillis Extract, Saccharum Officinarum (Suger Cane) Extract, Acer Saccharum (Sugar Maple) Extract, 16 Citrus Aurantium Dulcis (Orange) Fruit Extract, Citrus Medica Limonum (Lemon) Fruit Extract, Propylene Glycol, Diazolidinyl Urea, Methylparaben, Propylparaben