Rubus Idaeus Leaf Extract
INCI: RUBUS IDAEUS LEAF EXTRACT
Reviewed by Daisy · Last updated 14 Aug 2026
A plant-derived extract that supports skin hydration and antioxidant protection
Best For Skin Types
All, Dry, Sensitive, Mature
Addresses
Usage Frequency
Daily
What Is Rubus Idaeus Leaf Extract?
Rubus idaeus leaf extract is derived from raspberry leaf cells grown in laboratory culture. The extract is rich in phenolic compounds and flavonoids—including quercetin, hirsutrin, and ellagic acid—which are naturally occurring antioxidants found in raspberry plants. These compounds have been selected for their potential to support skin health and address visible signs of ageing.
In cosmetic formulations, this ingredient functions primarily as a skin conditioner, working to enhance the skin's natural hydration mechanisms and support the integrity of the hydrolipidic barrier—the skin's natural protective film.
How It Works
Rubus idaeus leaf extract works through multiple mechanisms. Its flavonoid compounds act as antioxidants, neutralising free radicals that accumulate in the skin from environmental damage and natural metabolic processes. This antioxidant activity may help slow visible signs of ageing.
Additionally, the extract contains lipid-soluble compounds that complement the skin's own hydrolipidic barrier. By supporting this barrier's composition and function, the ingredient may improve the skin's ability to retain water and maintain hydration. Research in cell models suggests the extract can enhance water homeostasis—the balance of water within skin cells—contributing to improved skin plumpness and texture.
Clinical Evidence & References
Cell culture studies indicate that Rubus idaeus leaf extract can improve hydration and water retention in skin cells. A split-face randomised controlled trial evaluated a serum combining this extract with vitamins C and E, finding improvements in fine lines, skin tone evenness, and overall skin appearance—though the combined formulation makes it difficult to isolate the specific contribution of the raspberry extract alone.
Laboratory research also demonstrates strong anti-inflammatory activity in skin cell models, with the extract significantly reducing inflammatory markers. However, further human studies would strengthen the evidence base, particularly for specific skin concerns and at varying concentrations.
Published Research
How to Use
This ingredient is typically incorporated into serums, moisturisers, and treatment products at low concentrations. It works well alongside complementary actives such as vitamins C and E. Apply as directed by the specific product formulation, usually once or twice daily. Allow serums to absorb fully before applying subsequent layers, particularly if using multiple hydrating or antioxidant products.
Safety & Precautions
Frequently Asked Questions
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Rubus Idaeus Leaf Extract is a variant of Rubus Idaeus (Raspberry) Fruit Extract, the form you will most often see on an ingredients list.
Rubus idaeus (raspberry) fruit extract is popularly known
Related Ingredients
Rubus Idaeus (Raspberry) Fruit Extract
Rubus idaeus (raspberry) fruit extract is popularly known
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Rubus Idaeus Extract
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A plant extract with astringent properties traditionally used to support skin condition
Rubus Idaeus Fruit Extract
A plant extract with astringent and antioxidant properties from raspberry fruit
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