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

PHOSPHORIC ACID

Safety grade: A

Phosphoric acid is a weak acid commonly found in foods and beverages like cola and fertilizers. In cosmetics, it's used in very small amounts to help maintain the product's pH balance and stability.

This ingredient acts as a pH buffer, helping to keep cosmetic formulations at the right acidity level so they work effectively and feel comfortable on skin.

Graded using: COSING, FDA.

Last verified: May 26, 2026