Ingredient review
Marsh Cinquefoil Extract
INCI: Hydrolyzed Comarum Palustre Root/Stem Extract
A gentle botanical extract with antioxidant and soothing potential, but research is limited.
In plain English
This is an extract from the root and stem of marsh cinquefoil, a plant that grows in wet, marshy areas. In skincare, it's used to help calm the skin and protect it from environmental stress. Because it's hydrolyzed (broken down with water), it's easier for the skin to absorb. Think of it as a mild, plant-based helper for sensitive or irritated skin.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- natural
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Marsh Cinquefoil Extract is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Marsh Cinquefoil Extract.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
A hydrolyzed extract from the root and stem of Comarum palustre (marsh cinquefoil), a perennial herb native to northern wetlands. The hydrolysis process breaks down larger molecules into smaller ones, improving absorption.
How it works
The extract contains polyphenols and flavonoids that act as antioxidants, neutralizing free radicals that can damage skin cells. It also has mild anti-inflammatory properties, which may help reduce redness and irritation when applied topically.
Pros
Gentle on skin
Low irritation risk makes it suitable for sensitive or reactive skin types.
Natural antioxidant
Contains polyphenols that help protect skin from environmental damage like pollution.
Cons and cautions
Limited research
Most evidence comes from lab studies, not large human trials, so effectiveness is not fully proven.
Rare allergy risk
People allergic to related plants (Rosaceae family) may experience contact dermatitis.
Best for
- People with sensitive or reactive skin
- Those looking for natural antioxidant ingredients
Use caution if
- Individuals with known allergies to Rosaceae family plants (e.g., roses, strawberries)
Usage tips
Safety summary
Considered safe for topical use with low irritation and comedogenic risk. Rare allergic reactions possible in individuals sensitive to Rosaceae plants.
Research notes
Preliminary lab studies suggest antioxidant and anti-inflammatory activity, but clinical evidence in humans is lacking. More research is needed to confirm benefits.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US, with no specific restrictions.
- Common uses
- Serums, Moisturizers, Soothing creams
- Environmental note
- Sourced from wild or cultivated marsh cinquefoil; sustainable harvesting practices are recommended to protect wetland ecosystems.
Good to know
- Hydrolyzed ingredients are often more easily absorbed by the skin.
- Marsh cinquefoil has a history of use in traditional herbal medicine for skin conditions.
Common questions
What is Marsh Cinquefoil Extract in beauty products?
This is an extract from the root and stem of marsh cinquefoil, a plant that grows in wet, marshy areas. In skincare, it's used to help calm the skin and protect it from environmental stress. Because it's hydrolyzed (broken down with water), it's easier for the skin to absorb. Think of it as a mild, plant-based helper for sensitive or irritated skin.
What does Marsh Cinquefoil Extract do in a beauty product?
The extract contains polyphenols and flavonoids that act as antioxidants, neutralizing free radicals that can damage skin cells. It also has mild anti-inflammatory properties, which may help reduce redness and irritation when applied topically.
Is Marsh Cinquefoil Extract safe for most people?
Considered safe for topical use with low irritation and comedogenic risk. Rare allergic reactions possible in individuals sensitive to Rosaceae plants.
Who should be careful with Marsh Cinquefoil Extract?
Individuals with known allergies to Rosaceae family plants (e.g., roses, strawberries)
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.