What it is
Nordihydroguaiaretic acid is a lignan-type polyphenolic compound originally identified in the creosote bush. It is recognized for its antioxidant properties and is used in cosmetic formulations to help protect against oxidation. It is typically incorporated at low levels.
Safety & warnings
NDGA is a potent antioxidant used at low concentrations in cosmetics. Some individuals may be sensitive to polyphenolic plant compounds; tolerability depends on the concentration and the full formulation.
Origin & sourcing
It occurs naturally in the creosote bush (Larrea species) and can also be produced synthetically for technical use.
Questions everyone asks
What is NDGA?
NDGA is nordihydroguaiaretic acid, a plant-derived polyphenol used as an antioxidant in cosmetic formulations.
What role does it play in a sunscreen formula?
It functions as an antioxidant, helping to protect the formulation and skin from oxidation.