QUERCUS ROBUR BARK EXTRACT is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

QUERCUS ROBUR BARK EXTRACT

Oak Bark Extract

Safety grade: A

This ingredient comes from the bark of oak trees and is rich in natural compounds called tannins. These compounds help tighten and firm the skin.

Oak bark extract works as an astringent to temporarily tighten pores, reduce excess oil, and create a more refined skin appearance.

Graded using: COSING, FDA.

Last verified: May 26, 2026

Other Astringent ingredients