What it is
This ingredient is an extract of the root and stalk of Rheum palmatum, a rhubarb species long used in traditional herbal practice. In cosmetics it is valued for its naturally occurring polyphenolic compounds and is used as a skin-conditioning and antioxidant agent. It can also contribute a natural tint to formulations.
Safety & warnings
Plant extracts like rhubarb root can vary in composition depending on source and processing. They are generally well tolerated at cosmetic use levels, though botanical extracts can occasionally provoke sensitivity in susceptible individuals.
Origin & sourcing
Natural, derived from the roots and stalks of the Rheum palmatum plant.
Questions everyone asks
What plant does this extract come from?
It comes from Rheum palmatum, commonly known as Chinese or Turkey rhubarb.
What is its role in a sunscreen?
It serves as a botanical skin-conditioning and antioxidant ingredient, not as a UV filter.