Rubus Coreanus Fruit Extract
INCI: RUBUS COREANUS FRUIT EXTRACT
Reviewed by Kate · Last updated 2 Jun 2026
A polyphenol-rich fruit extract with antioxidant and skin-conditioning properties
Best For Skin Types
All, Sensitive, Combination
Addresses
Usage Frequency
Daily
What Is Rubus Coreanus Fruit Extract?
Rubus coreanus fruit extract comes from the Asian black raspberry, a plant native to East Asia. The extract is rich in polyphenols, particularly anthocyanins—the pigments responsible for the fruit's deep colour. These compounds are known for their antioxidant activity, which means they can help neutralise free radicals in the skin.
In skincare formulations, this ingredient functions as a skin conditioner, helping to maintain skin hydration and support the skin's natural barrier function. It is typically used in concentrations that allow its bioactive compounds to work alongside other ingredients in a formula.
How It Works
The anthocyanins and other polyphenols in Rubus coreanus fruit extract work primarily through their free radical-scavenging ability. When applied to skin, these compounds can interact with unstable molecules (free radicals) that damage skin cells and collagen, helping to stabilise them before they cause harm.
Additionally, the extract appears to support skin conditioning through moisture retention and potential modulation of inflammatory pathways in the skin, though the precise mechanisms in human skin require further study. These properties work to maintain skin comfort and support its natural protective barrier.
Clinical Evidence & References
In vitro studies demonstrate that anthocyanins from Rubus coreanus have significant antioxidant capacity and can protect cells from oxidative stress in laboratory conditions. Research on related Rubus species has shown promise in reducing inflammatory responses in atopic dermatitis models, suggesting potential benefits for reactive or compromised skin.
However, direct clinical evidence in human skin is limited. Most existing research has focused on cell cultures or animal models rather than controlled human trials. Whilst the antioxidant profile is well-established, larger human studies would help clarify its practical benefit when used in cosmetic formulations at typical concentrations.
How to Use
Rubus coreanus fruit extract is typically incorporated into serums, creams, and essences. It works well alongside other antioxidants and hydrating ingredients. There is no specific usage limitation; products containing this ingredient can generally be used as directed on the label, morning or evening, depending on the formulation type.
Safety & Precautions
Frequently Asked Questions
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