Ingredient review
Quercus Acutissima Leaf Powder
INCI: QUERCUS ACUTISSIMA LEAF POWDER
A gentle botanical powder from oak leaves that may offer antioxidant benefits, but research is very limited.
In plain English
This is a powder made from the dried leaves of the sawtooth oak tree. In skincare, it's used as a gentle physical exfoliant or as a source of plant compounds that may help protect skin from environmental stress. Because it's a natural plant material, it can vary in particle size and composition, so it's often used in masks or powders rather than clear serums.
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
Quercus Acutissima Leaf Powder 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 Quercus Acutissima Leaf Powder.
- 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 finely ground powder from the leaves of Quercus acutissima, a species of oak tree native to East Asia. The leaves contain tannins and other polyphenols that can act as antioxidants.
How it works
When applied to the skin, the powder provides a mild abrasive texture that can help slough off dead skin cells. The leaf's natural polyphenols may also help neutralize free radicals, potentially reducing oxidative stress on the skin.
Pros
Natural and biodegradable
Unlike plastic microbeads, this plant-based powder breaks down naturally and is more environmentally friendly.
Potential antioxidant content
Oak leaves contain tannins and flavonoids that may help protect skin from environmental damage, though research is still emerging.
Cons and cautions
Limited research
There are very few studies on Quercus acutissima leaf powder specifically for cosmetic use, so its benefits are not well-established.
Variable particle size
As a natural ground material, the powder may contain larger or sharper particles that could cause micro-tears in the skin if not finely milled.
Best for
- People looking for a natural, biodegradable physical exfoliant
- Those with normal to oily skin who want a gentle scrub
Use caution if
- Individuals with very sensitive or broken skin, as any physical exfoliant can cause irritation
Usage tips
Safety summary
Quercus acutissima leaf powder is likely safe for most skin types when used as a gentle exfoliant. However, due to the lack of specific safety studies, those with very sensitive skin should patch test first. Avoid use on broken or inflamed skin.
Research notes
Research on this specific ingredient is minimal. Most evidence comes from general studies on oak leaf extracts, which show antioxidant and anti-inflammatory activity in lab settings. No clinical trials on human skin have been published for this exact powder.
Common label clues
- Typical concentration
- Typically used at 0.1% to 2% in leave-on products, higher in rinse-off masks or powders.
- Regulatory status
- Generally considered safe for cosmetic use as a botanical ingredient, but not specifically evaluated by the FDA or EU CosIng for this exact leaf powder.
- Common uses
- Masks, Powders, Exfoliants
- Environmental note
- Sawtooth oak is a common tree in parts of Asia and is not considered endangered. Sourcing from sustainable farms is recommended.
Good to know
- This ingredient is often found in powder-to-foam cleansers or DIY mask blends.
- It is not water-soluble, so it will not dissolve in clear formulas.
Common questions
What is Quercus Acutissima Leaf Powder in beauty products?
This is a powder made from the dried leaves of the sawtooth oak tree. In skincare, it's used as a gentle physical exfoliant or as a source of plant compounds that may help protect skin from environmental stress. Because it's a natural plant material, it can vary in particle size and composition, so it's often used in masks or powders rather than clear serums.
What does Quercus Acutissima Leaf Powder do in a beauty product?
When applied to the skin, the powder provides a mild abrasive texture that can help slough off dead skin cells. The leaf's natural polyphenols may also help neutralize free radicals, potentially reducing oxidative stress on the skin.
Is Quercus Acutissima Leaf Powder safe for most people?
Quercus acutissima leaf powder is likely safe for most skin types when used as a gentle exfoliant. However, due to the lack of specific safety studies, those with very sensitive skin should patch test first. Avoid use on broken or inflamed skin.
Who should be careful with Quercus Acutissima Leaf Powder?
Individuals with very sensitive or broken skin, as any physical exfoliant can cause irritation
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.