Common Name(s): Quercus suber bark,cosmetic active,established formulation ingredient

CAS Number: N/a

DESCRIPTION

What It Does: Quercus suber bark contributes its primary cosmetic function to formulations — improving skin feel, stability, performance, or delivering a specific active benefit depending on its chemical class and concentration level.

Why It's Used: Formulators choose quercus suber bark for its established efficacy in contributing the required functional property to their formulation — whether rheological control, active delivery, aesthetic enhancement, or preservation — supported by the cosmetic chemistry literature and regulatory assessment framework.

How It Works: Quercus suber bark works through the characteristic mechanism of its chemical class — either through physicochemical interaction with the formulation matrix (surface activity, film formation, viscosity building) or through biological interaction with skin tissues (receptor binding, enzymatic substrate, barrier component integration). the specific mechanism follows from its molecular structure as detailed in peer-reviewed cosmetic chemistry literature.

Typically Found In: Skin care formulations

TECHNICAL DETAILS

Primary Category: Active ingredient – cosmetic active

Secondary Functions: Skin conditioning

Application Areas:

Typical Concentration Range: 0.1%–10%

SOURCING & ETHICS

Vegan Status: Conditional

Halal Status: Yes

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Well-tolerated by most skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Good safety profile at recommended concentrations. ewg score: 1–2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Quercus suber bark has been assessed within the regulatory framework applicable to cosmetic ingredients. at standard cosmetic use concentrations, the ingredient delivers documented functional benefit with an established safety profile based on the available toxicological and clinical evidence reviewed by regulatory bodies including cosing (eu), inci, and cir.

Last Verified: Cosing database,quercus suber bark technical literature

Primary Sources: 2026-03-12