Quercus Robur (Oak) Root Extract



No known benefits

Quercus Robur (Oak) Root Extract at a glance

  • Plant-derived ingredient taken from the English oak tree
  • Can help protect skin from external aggressors
  • Contains tannins, which denature skin
  • Might contribute to skin barrier disruptions

Quercus Robur (Oak) Root Extract description

_Quercus robur_ (oak) root extract is a plant-derived skin care ingredient taken from English oak trees used for its antioxidant and astringent properties. This oak tree’s root extract contains flavonoids and phenolic compounds, both of which have antioxidant benefits, helping protect skin from pro-aging environmental aggressors, like pollution, that cause damage. However, this extract also contains tannins, a group of powerful antioxidants that also denature the proteins on skin’s surface, which can lead to a compromised skin barrier. Please note, this extract differs from the more researched _Quercus robur_ (oak) bark extract as it’s derived from different parts of the same tree. This ingredient isn’t usually used alone, but within ingredient blends.

Quercus Robur (Oak) Root Extract references

  • Phytochemistry Reviews, July 2020, pages 1,379-1,426
  • Records of Natural Products, January 2017, pages 205-210

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.