Kojic acid is a lesser-known brightening active worth adding if you want a more even complexion. Derived from certain fungi, it targets hyperpigmentation and discoloration effectively. It performs well alone or alongside other brighteners, and it also offers antioxidant and anti-inflammatory support. Here’s a clear guide to what it does and how to fit it into a routine. What Is Kojic Acid A naturally derived brightening agent from fungi and fermentation (e.g., mushrooms, rice