Best For Skin Types
All, Oily, Combination
Addresses
Usage Frequency
Daily
What Is Rubus Occidentalis Fruit Extract?
Rubus occidentalis fruit extract is derived from black raspberries, a berry native to North America. The extract is obtained by processing the fruit and capturing its phytochemical constituents, which include polyphenols and other antioxidant compounds commonly found in dark berries.
In skincare formulations, this ingredient is used for its astringent and skin-conditioning properties. Astringent ingredients are thought to help tighten the appearance of skin, whilst skin conditioning refers to the ingredient's ability to help maintain skin's moisture and texture.
How It Works
Black raspberry extract contains bioactive compounds, primarily polyphenols, that function as antioxidants. These work by scavenging free radicals—unstable molecules that can damage skin cells and contribute to visible ageing. By neutralising these free radicals, the extract may help protect skin against environmental stressors.
The astringent action is thought to occur through the tannins present in the extract, which can interact with skin proteins and create a mild tightening sensation. As a skin conditioner, the extract helps support the skin barrier and maintain hydration levels.
Clinical Evidence & References
Laboratory research on black raspberry extract has shown promising results in cell-based studies, where it demonstrated the ability to inhibit certain molecular pathways involved in UV-induced skin damage. Specifically, studies indicate it may help suppress the activation of inflammatory signalling pathways (NF-kappa B and AP-1) in response to UV exposure in cultured skin cells.
However, it is important to note that most evidence remains at the cell or animal model level. Human clinical trials evaluating the ingredient's efficacy in topical skincare products are limited. The practical benefit of the extract in finished formulations may depend on concentration, formulation stability, and how effectively the active compounds can penetrate the skin barrier. Further human studies would help clarify its real-world impact on skin health and appearance.
How to Use
Black raspberry fruit extract is typically found in serums, essences, toners, and moisturisers. As it is often included as one ingredient among many in a formulation, its effects are usually cumulative with other skincare actives. Use as directed by the specific product—typically morning and evening as part of your regular skincare routine. If combining with other active ingredients (such as vitamin C or niacinamide), introduce them gradually to monitor how your skin responds.
Safety & Precautions
Frequently Asked Questions
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Rubus Occidentalis Fruit Extract is a variant of Rubus Occidentalis Seed Oil, the form you will most often see on an ingredients list.
A nutrient-rich seed oil with antioxidant and emollient properties
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