Dioic Acid

Dioic Acid is a multifunctional ingredient best known for its brightening and sebum-regulating properties. Specifically Octadecenedioic Acid is the version used in brightening the skin. It works by inhibiting tyrosinase activity and reducing oil production, making it beneficial for both acne-prone and hyperpigmented skin.

Dioic Acid also has antibacterial and anti-inflammatory effects, helping to calm breakouts and improve overall skin clarity.

It’s often found in serums and treatments targeting uneven tone and blemishes, supporting a clearer, more balanced complexion.