What it is
This ingredient is an extract of the root of Ononis spinosa, a plant commonly known as spiny restharrow. In cosmetics it is used as a skin-conditioning agent, often featured in products marketed for comfort and soothing. It typically appears at low levels within the water phase of leave-on formulas including sunscreens.
Safety & warnings
Restharrow root extract is generally well tolerated in cosmetic use and is not a designated fragrance allergen. It is water-based and not considered comedogenic. As with any botanical, sensitivity is possible in predisposed individuals, so patch testing is reasonable for reactive skin.
Origin & sourcing
Natural; obtained by extraction of the root of the Ononis spinosa plant, generally into aqueous or glycol carriers.
Questions everyone asks
What is restharrow root extract used for?
It is a skin-conditioning botanical, often included in formulas positioned around soothing and skin comfort.
Does it act as a UV filter?
No. It is a conditioning plant extract and provides no sun protection.