Ingredient review
Kurzhi Branch/Leaf Extract
INCI: Sterculia platanifolia branch/leaf extract
A gentle botanical extract with antioxidant potential, but research is still emerging and benefits are not yet well-established in human skin.
In plain English
This is an extract made from the branches and leaves of the Chinese parasol tree (Sterculia platanifolia). In skincare, it is added to products for its ability to help calm the skin and fight free radicals—unstable molecules that can damage skin cells. However, most of what we know comes from lab studies, not large human trials, so its effects are not guaranteed.
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
Kurzhi Branch/Leaf 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 Kurzhi Branch/Leaf 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 branches and leaves of the Chinese parasol tree, a plant native to East Asia. It contains various plant compounds like flavonoids and phenolic acids that may have antioxidant and anti-inflammatory activity.
How it works
The extract is thought to work by donating electrons to neutralize free radicals, thereby reducing oxidative stress on the skin. It may also help calm irritation by modulating inflammatory pathways, though the exact mechanisms are not fully understood in human skin.
Pros
Gentle antioxidant
Provides a mild antioxidant boost that can help protect skin from daily environmental damage without irritation.
Soothing potential
May help calm minor redness or sensitivity, making it a good addition for reactive skin types.
Cons and cautions
Limited research
Most evidence comes from lab studies, not large human trials, so real-world benefits are not well-proven.
Uncommon ingredient
Not widely studied or used in mainstream skincare, making it harder to find products with meaningful concentrations.
Best for
- Anyone looking for a gentle, plant-based antioxidant in their routine
- People with normal to dry skin who want extra soothing support
Use caution if
- Individuals with known allergies to plants in the Malvaceae family (e.g., cotton, okra)
Usage tips
Safety summary
Sterculia platanifolia branch/leaf extract is considered safe for topical use with low irritation and comedogenic risk. Allergic reactions are rare but possible in individuals sensitive to related plants.
Research notes
Current evidence is limited to in vitro (lab) studies showing antioxidant and anti-inflammatory activity. No robust human clinical trials have been published, so efficacy claims should be viewed with caution.
Common label clues
- Typical concentration
- Typically 0.1% to 2% in leave-on products
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US when used as a topical ingredient at typical concentrations. Not a regulated drug ingredient.
- Common uses
- Serums, Moisturizers, Toning lotions
- Environmental note
- The tree is widely cultivated and not considered endangered, but sustainable harvesting practices are recommended to avoid overexploitation.
Good to know
- The Chinese parasol tree is also known as Firmiana simplex and is often planted as an ornamental tree.
- This extract is sometimes used in traditional East Asian herbal medicine, but cosmetic use is still niche.
Common questions
What is Kurzhi Branch/Leaf Extract in beauty products?
This is an extract made from the branches and leaves of the Chinese parasol tree (Sterculia platanifolia). In skincare, it is added to products for its ability to help calm the skin and fight free radicals—unstable molecules that can damage skin cells. However, most of what we know comes from lab studies, not large human trials, so its effects are not guaranteed.
What does Kurzhi Branch/Leaf Extract do in a beauty product?
The extract is thought to work by donating electrons to neutralize free radicals, thereby reducing oxidative stress on the skin. It may also help calm irritation by modulating inflammatory pathways, though the exact mechanisms are not fully understood in human skin.
Is Kurzhi Branch/Leaf Extract safe for most people?
Sterculia platanifolia branch/leaf extract is considered safe for topical use with low irritation and comedogenic risk. Allergic reactions are rare but possible in individuals sensitive to related plants.
Who should be careful with Kurzhi Branch/Leaf Extract?
Individuals with known allergies to plants in the Malvaceae family (e.g., cotton, okra)
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.