Ingredient review
Amur Cork Tree Stem Extract
INCI: PHYSOCARPUS AMURENSIS STEM EXTRACT
A gentle plant extract that may help calm skin and fight free radical damage, though research is still early.
In plain English
This ingredient comes from the stem of the Amur cork tree, a plant native to East Asia. In skincare, it's used as an antioxidant to help protect skin from environmental stressors like pollution and UV rays, and it may also have soothing properties to reduce redness or irritation. Think of it as a mild, plant-based helper for keeping skin calm and defended.
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
Amur Cork Tree Stem 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 Amur Cork Tree Stem 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 natural extract derived from the stem of Physocarpus amurensis (also known as Phellodendron amurense), a tree traditionally used in herbal medicine. It contains compounds like berberine and other alkaloids that give it antioxidant and anti-inflammatory potential.
How it works
The extract provides antioxidant activity by neutralizing free radicals—unstable molecules that can damage skin cells and accelerate aging. It may also inhibit certain inflammatory pathways, helping to reduce visible redness and sensitivity when applied topically.
Pros
Gentle antioxidant
Provides free-radical protection without common irritation, making it suitable for sensitive skin types.
Soothing potential
Early research suggests it may help reduce redness and calm inflammation, which is helpful for reactive skin.
Cons and cautions
Limited research
Most evidence comes from lab or animal studies; human skin studies are sparse, so benefits are not fully proven.
Variable potency
The concentration of active compounds can differ between batches, leading to inconsistent results in products.
Best for
- Anyone looking for extra antioxidant support in their routine
- People with sensitive or reactive skin seeking a gentle soothing ingredient
Use caution if
- Those with known allergies to plants in the Rutaceae family (citrus family) should patch test first
Usage tips
Safety summary
Considered safe for topical use with low irritation and allergy risk. Patch testing is recommended for those with plant allergies.
Research notes
Antioxidant and anti-inflammatory effects are supported by in vitro and animal studies, but human clinical data is limited. More research is needed to confirm efficacy in skincare.
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, Toner
- Environmental note
- Harvesting from wild trees can impact biodiversity; look for sustainably sourced or cultivated extracts when possible.
Good to know
- This extract is sometimes listed under the older name Phellodendron amurense on labels.
- It is not the same as cork tree bark extract from Quercus suber, which is used for texture.
Common questions
What is Amur Cork Tree Stem Extract in beauty products?
This ingredient comes from the stem of the Amur cork tree, a plant native to East Asia. In skincare, it's used as an antioxidant to help protect skin from environmental stressors like pollution and UV rays, and it may also have soothing properties to reduce redness or irritation. Think of it as a mild, plant-based helper for keeping skin calm and defended.
What does Amur Cork Tree Stem Extract do in a beauty product?
The extract provides antioxidant activity by neutralizing free radicals—unstable molecules that can damage skin cells and accelerate aging. It may also inhibit certain inflammatory pathways, helping to reduce visible redness and sensitivity when applied topically.
Is Amur Cork Tree Stem Extract safe for most people?
Considered safe for topical use with low irritation and allergy risk. Patch testing is recommended for those with plant allergies.
Who should be careful with Amur Cork Tree Stem Extract?
Those with known allergies to plants in the Rutaceae family (citrus family) should patch test first
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.