Oak Root Extract ●
TL;DR. This ingredient is mainly used as a skin-conditioning and astringent botanical material, helping give formulas a tighter, less oily feel. Its phenolic fraction can also contribute antioxidant support in a formula.
What does Oak Root Extract do in a cosmetic formula?
This ingredient is mainly used as a skin-conditioning and astringent botanical material, helping give formulas a tighter, less oily feel. Its phenolic fraction can also contribute antioxidant support in a formula.
Is Oak Root Extract clean?
From a clean-beauty lens, this ingredient is generally acceptable and not a common restricted-list concern. As with many botanicals, tolerability depends on concentration and residual solvents, and very reactive skin may notice astringency from phenolic compounds.
Is Oak Root Extract sustainable?
This material comes from renewable plant biomass, and its major natural constituents are expected to be biodegradable. The main sustainability question is harvesting method and traceability, because the feedstock can require more intensive plant collection than leaf- or fruit-derived inputs.
Is Oak Root Extract COSMOS-approved?
It can be permitted under COSMOS-natural, and under COSMOS-organic when the agricultural feedstock and processing meet certification rules. Its Green Chemistry profile is strongest when made with water, ethanol, glycerin, or other approved low-impact solvents and minimal downstream purification.
How does Oak Root Extract work chemically?
Chemically, this material is a complex botanical mixture dominated by polyphenols such as tannins, flavonoids, and phenolic acids, alongside sugars, minerals, and other minor plant constituents. It is typically used at low cosmetic levels, often around 0.1% to 5% depending on the supplied concentration, and phenolics can darken or oxidize with heat, oxygen, light, or high pH.
Last updated 2026-05-13