Key ingredients:

• 3% Tranexamic Acid: This synthetically-derived ingredient minimizes the reoccurrence of skin discoloration and stubborn brown patches with continued use.
  
  
• 1% Kojic Acid: Naturally produced by certain fungi, kojic acid helps improve skin brightness.
  
  
• 5% Niacinamide: Also known as vitamin B3, this water-soluble vitamin is found naturally in yeast, meat, fish, milk, eggs, green vegetables, beans, and cereal grains. It has been shown to help reduce the appearance of skin discoloration.
  
  
• 5% HEPES: This synthetically-derived acid activates natural enzymes in skin to help break the bonds that bind dead skin cells to the surface for even exfoliation.

Ingredients:
Aqua / Water, Butylene Glycol, Niacinamide, Hydroxyethylpiperazine Ethane Sulfonic Acid, Glycerin, Tranexamic Acid, Propylene Glycol, Hydroxyethyl Urea, Kojic Acid, Caprylyl Glycol, Allantoin, Chlorphenesin, Xanthan Gum, Disodium Edta.

1. Twice daily, apply 3-5 drops of this skin discoloration serum to the face.
2. If using in the morning, apply after a SkinCeuticals vitamin C serum and follow with a SkinCeuticals broad spectrum SPF 50+ sunscreen.
3. Limit sun exposure while using this product.
4. Do not use on irritated or broken skin. If irritation occurs, discontinue use.
5. Complete your regimen with a SkinCeuticals sunscreen. When used together, SkinCeuticals antioxidants and broad-spectrum sunscreens provide more comprehensive protection against visible aging caused by environmental aggressors.