Differin Dark Spot Correcting Serum 

Ingredients:

Active Ingredients: Hydroquinone - 2 %Inactive Ingredients: 1,2-Hexanediol, Alcohol Denat., Caprylyl Glycol, Citric Acid, Disodium EDTA, Fragrance, Hippophae Rhamnoides Oil, Hydroxyethylcellulose, PEG-40 Hydrogenated Castor Oil, Polysorbate 20, Sodium Metabisulfite, Sodium Sulfite, Water

Warnings:

For external use only. When using this product Avoid contact with eyes. Some users of this product may experience a mild skin irritation. If skin irritation becomes severe, stop use and consult a doctor. Do not use on children under 12 years of age unless directed by a doctor. Keep out of reach of children. If swallowed, get medical help or contact a Poison Control Center right away.