Quercus Acutissima Fruit Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 30, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Quercus Acutissima Fruit Extract?

Quercus Acutissima Fruit Extract comes from the fruit of the sawtooth oak, a tree that grows widely across Korea, China and Japan. The small acorn-like fruits are packed with naturally occurring tannins, flavonoids and other phenolic compounds that give the extract its skin-tightening character. For centuries those tannins were prized for tanning leather and clarifying water, and folk remedies often used the ground fruit on oily or troubled skin. Modern cosmetic labs collect ripe fruits, clean and dry them, then mill them into a fine powder. The powder is steeped in water, propylene glycol or another safe solvent to pull out the active molecules, after which the liquid is filtered, concentrated and standardized so every batch delivers consistent performance.

Because of its high tannin content and gentle, plant-based profile, Quercus Acutissima Fruit Extract shows up in products that aim to refine skin texture and control shine. You will most often find it in toners, sheet masks, pore-minimizing serums, lightweight oil control moisturizers, aftershave lotions and even scalp tonics formulated for oily roots.

Quercus Acutissima Fruit Extract’s Cosmetic Benefits/Uses

This extract is valued mainly for one key action: it works as an astringent. By lightly contracting the skin’s surface proteins it helps tighten the look of enlarged pores, curb excess sebum and leave a clean refreshed finish. Products that include it tend to feel less greasy while giving the complexion a smoother appearance and a subtle matte effect.

Who Can Use Quercus Acutissima Fruit Extract

The extract is best suited to oily and combination skin because its tannins help soak up excess sebum and leave a matte finish. Normal skin types can also enjoy the fresh feel, while very dry or easily dehydrated skin may find repeated use a bit too tightening unless balanced with richer moisturizers. Most sensitive skin users tolerate it well in low concentrations though anyone with a history of reactivity to oak pollen or tree extracts should proceed carefully.

Because the ingredient is strictly plant derived with no animal byproducts, it is generally considered appropriate for vegans and vegetarians. The extraction solvents typically used in cosmetic production are also synthetic or plant based, not animal sourced.

No published data flag Quercus Acutissima Fruit Extract as a concern for women who are pregnant or breastfeeding when used topically in rinse off or leave on products. Still, this is not medical advice and anyone who is expecting or nursing should check with a qualified healthcare provider before adding new skincare items to a routine.

The extract does not make skin more sensitive to sunlight and has no known phototoxic compounds. It is also fragrance free and free of common sensitizers like essential oils, making it a quiet addition to daytime or nighttime regimens.

Potential Side Effects/Adverse Reactions

Individual responses can vary and the following represents a list of potential side effects that are uncommon when products are formulated and used correctly.

  • Dryness or a tight feeling, especially on already parched skin
  • Mild stinging or redness on very sensitive skin
  • Allergic contact dermatitis in people sensitive to oak or other Fagaceae family plants
  • Exacerbation of existing eczema or compromised skin barriers due to the astringent action
  • Temporary dark staining of fabrics if a highly concentrated extract drips or spills

If any irritation or unexpected reaction occurs stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 1/5

Quercus Acutissima Fruit Extract is composed mainly of water soluble tannins and polyphenols, leaving behind little to no oily residue that could block pores. It is usually added to lightweight formulas such as toners or gels, so the chance of buildup remains very low. A small possibility of particulate matter settling on the skin in highly concentrated powders is why it earns a cautious 1 rather than a perfect 0.

This rating means the extract is generally suitable for people who are prone to acne or frequent breakouts.

Pay attention to the entire formula though; if the extract sits in a heavy cream packed with oils, the product as a whole could still feel pore clogging.

Summary

Quercus Acutissima Fruit Extract offers one main benefit: gentle astringency that tightens the appearance of pores, reins in excess oil and leaves skin feeling refreshed. The high tannin content bonds lightly with surface proteins to create that instant firming, mattifying effect.

While not the most famous ingredient on the global stage, it enjoys a loyal following in East Asian skincare where brands value its plant based heritage and dependable oil control. Western lines use it more sparingly but it pops up in targeted toners, aftershaves and scalp mists.

Safety data are reassuring and adverse reactions are rare, still it is wise to patch test any new product that contains the extract to ensure personal compatibility.

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