Mahonia Aquifolium Root Extract



No known benefits

Mahonia Aquifolium Root Extract at a glance

  • Skin-calming ingredient, also known as Oregon grape
  • Delivers significant antioxidant properties to help offset the ravaging effects of sun damage
  • Can be used to address sensitive or reactive skin issues
  • Slightly viscous brown liquid in raw material form

Mahonia Aquifolium Root Extract description

_Mahonia aquifolium_ root extract, also known as Oregon grape and _Berberis aquifolium_, functions as a skin-calming ingredient. A great deal of the research behind this ingredient has shed light on its significant antioxidant properties that help protect skin from the ravaging effects of sun damage. Other research relates directly to its use for addressing sensitive skin issues that lead to redness, flaking, and discomfort. _Mahonia_ is a shrub of the plant family _Berberidaceae_, including species native to East Asia, North America and Central America. Cosmetic suppliers of this ingredient describe it is as a slightly viscous brown liquid in raw material form. Usage levels range from 0.1–1%, the higher amount being if it’s part of a blend. A formal safety assessment hasn’t been conducted; however, studies on compromised human skin have shown it is well tolerated, with only a slight risk of sensitisation (and remember, this was on compromised skin).

Mahonia Aquifolium Root Extract references

  • Bio-Botanica Inc., Accessed September 2021, ePublication
  • The Journal of Clinical and Aesthetic Dermatology, December 2018, pages 42–47
  • Molecules, February 2021, pages 1-17
  • Journal of Ethnopharmacology, September 2009, pages 297-303
  • Fitoterapia, November 2007, pages 802-806
  • Journal of Inflammation, July 2007, pages 1-7
  • American Journal of Therapeutics, September 2005, pages 398-406
  • Bioorganic and Medicinal Chemistry, September 2004, pages 4,709-4,715

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