Skincare Ingredient
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Polygonum Cuspidatum Root Extract
In Skincare: Is Polygonum Cuspidatum Root Extract Safe? Comedogenic Rating & Side Effects
Safety Information
Quick Insights
At a glance
- 01
Polygonum Cuspidatum Root Extract is an excellent source of the potent antioxidant resveratrol.
- 02
This extract helps inhibit the formation of substances that degrade collagen within skin.
- 03
Higher concentrations of Polygonum Cuspidatum Root Extract have been shown to visibly improve hyperpigmentation.
- 04
Polygonum Cuspidatum Root Extract can help reduce signs of skin irritation.
Key Benefits
What Polygonum Cuspidatum Root Extract does for your skin
Overview
Ingredient Profile
Role of Polygonum Cuspidatum Root Extract
Active Cosmetic Mechanisms
ANTIOXIDANT
Anti-Aging ProtectorProtects products and skin from oxidative damage and aging
SCIENTIFIC ANALYSIS
// Evidence: Antioxidants prevent or delay oxidation by donating electrons to free radicals, chelating pro-oxidant metals, or regenerating other antioxidants. Mechanisms include direct radical scavenging (vitamin E, vitamin C, BHT, BHA), metal chelation (EDTA), or enzymatic action. On skin, they neutralize reactive oxygen species (ROS) generated by UV radiation and pollution, preventing lipid peroxidation and DNA damage.
Products
containing Polygonum Cuspidatum Root Extract
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References
Scientific sources
Evidence-Based Complementary and Alternative Medicine, April 2020, ePublication
Food and Science Nutrition, June 2019, pages 2,006-2,016
Biomedicines, September 2018, ePublication
Evidence Based Complementary and Alternative Medicine, September 2013, ePublication
International Journal of Preventive Medicine, April 2013, Supplement 1, pages S1-S4
Journal of Inflammation, February 2008, ePublication
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Frequently Asked Questions
Polygonum Cuspidatum Root Extract — common questions
What is Polygonum Cuspidatum Root Extract in skincare?
Polygonum Cuspidatum Root Extract is an extract of the roots of the Japanese Knotweed, Polygonum cuspidatum, Polygonaceae
What does Polygonum Cuspidatum Root Extract do? / Functions of Polygonum Cuspidatum Root Extract?
Common functions: ANTIOXIDANT.
What is the comedogenic rating of Polygonum Cuspidatum Root Extract? / Is Polygonum Cuspidatum Root Extract comedogenic?
The comedogenic rating of Polygonum Cuspidatum Root Extract has not been established in our database.
Does it clog pores?
Whether Polygonum Cuspidatum Root Extract clogs pores depends on the formulation and concentration.
Is Polygonum Cuspidatum Root Extract safe for skin?
Polygonum Cuspidatum Root Extract has a safety rating of 2 out of 5. A rating of 2 means it is generally considered safe for most skin types. Note: Plant extract rich in resveratrol and polyphenols. Limited safety data available, though resveratrol is generally considered safe for topical use; however, may cause mild irritation in some individual
Is Polygonum Cuspidatum Root Extract good for sensitive skin?
Polygonum Cuspidatum Root Extract has an irritancy rating of 2 out of 5. A rating of 2 means it is generally well-tolerated.
What are the side effects of Polygonum Cuspidatum Root Extract in skincare?
Known considerations: Plant extract rich in resveratrol and polyphenols. Limited safety data available, though resveratrol is generally considered safe for topical use; however, may cause mild irritation in some individuals.