Best For Skin Types
Oily, Combination
Addresses
Effective Concentrations
10-20%
Usage Frequency
Daily to 2-3 times per week
What Is Quercus Acutissima Fruit Extract?
Quercus acutissima fruit extract is derived from the fruit of the sawtooth oak tree, native to East Asia. It belongs to a group of plant extracts traditionally used in skincare for their astringent properties — meaning they have a tightening or constricting effect on the skin.
In skincare formulations, this extract is typically incorporated at concentrations between 10% and 20%. Its primary function centres on its ability to temporarily tighten and refine the appearance of skin, making it a common choice in products designed to address oiliness and pore visibility.
How It Works
The extract contains naturally occurring compounds that interact with the skin's surface to create a mild tightening effect. This astringency works by causing a temporary contraction of skin tissues, which can visually reduce pore size and create a refined appearance.
The mechanism is largely topical and temporary in nature — the effect diminishes as the product is removed or diluted. Regular use may contribute to more sustained improvements in skin texture, though the primary benefit occurs during and immediately after application.
Clinical Evidence & References
Published clinical data specific to Quercus acutissima fruit extract is limited. The ingredient's astringent profile is well-established within traditional use and cosmetic practice, but rigorous peer-reviewed studies examining its efficacy in skincare are sparse.
Evidence for astringent plant extracts more broadly suggests they can produce measurable but temporary effects on pore appearance and skin tightness. Individual results may vary, and the ingredient's true benefit likely depends on formulation quality and concentration used.
How to Use
Incorporate this ingredient into your routine as part of a toner, essence, or targeted treatment serum. Apply to clean skin before moisturiser. If using daily, monitor how your skin responds — astringent ingredients can be drying if overused. Those with compromised barrier function should use cautiously and consider limiting frequency to 2-3 times per week.
Safety & Precautions
Frequently Asked Questions
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