Althaea Officinalis Root Extract


Plant extracts

Althaea Officinalis Root Extract at a glance

  • Plant with soothing, redness-reducing properties
  • Also works as a lightweight emollient
  • Helps offset negative impact of enzymes that degrade hyaluronic acid
  • Also known as marshmallow root

Althaea Officinalis Root Extract description

_Althaea officinalis_ root extract is a soothing, lightly emollient plant extract that’s been shown to offset the rise of enzymes within skin that, left unchecked, break down hyaluronic acid. As such, it can also be said that this plant helps maintain skin’s hydration. The mucilage (a gelatinous fluid) of this plant contains skin-smoothing polysaccharides including glucuronic acid, rhamnose and galactose. Usage levels in cosmetics range from 1–5% when in solution with ingredients such as glycerin or various glycols. In such a blend, approximately 2–5% is _Althaea officinalis_ root, meaning it doesn’t take much to get visible results from this plant. Along with documented soothing benefits, _Althaea officinalis_ root has also been shown to interrupt oxidative damage generated within skin after exposure to UVA light, although this benefit varied based on how the plant was grown and cultivated. As an interesting aside unrelated to cosmetics, the root of this plant has been used internally to relieve a dry cough resulting from mucosal/throat irritation. _Althaea officinalis_ root extract is considered safe for use on skin.

Althaea Officinalis Root Extract references

  • Toxics, April 2022, pages 1–9
  • Phytotherapy Research, March 2021, pages 1,389–1,398
  • Frontiers in Pharmacology, March 2020, pages 1–14
  • Oxidative Medicine and Cellular Longevity, February 2016, pages 1–9
  • Advances in Dermatology and Allergology, June 2013, pages 170–177

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.