QUINIC ACID is graded A (Safe) by Expert·ING, based on COSING regulatory data.

QUINIC ACID

Safety grade: A

Quinic acid is a naturally occurring organic compound found in plants like coffee berries and cinchona bark. It's used in skincare products to help maintain the product's pH balance and stability.

This ingredient acts as a pH buffer in cosmetic formulations, helping to maintain the product's acidity level and ensure it remains gentle and stable on the skin.

Graded using: COSING.

Last verified: May 26, 2026