Best For Skin Types
Oily, Combination
Addresses
Usage Frequency
Daily
What Is Eugenia Uniflora Leaf Extract?
Eugenia uniflora leaf extract comes from the leaves of a plant native to Brazil and South America. It belongs to the Myrtaceae family and has been used traditionally in folk medicine. In skincare formulations, it functions as an astringent — an ingredient that helps tighten and tone the skin by reducing the appearance of pores and controlling excess moisture.
The extract contains naturally occurring phenolic compounds including quercetin, catechin and gallocatechin, which contribute to its antioxidant activity. These compounds help neutralise free radicals and may support the skin's natural defences against environmental stressors.
How It Works
The astringent effect occurs through the tannins and phenolic compounds in the extract, which interact with skin proteins to create a subtle tightening sensation. This can temporarily reduce pore appearance and help control excess sebum on oily areas.
The antioxidant mechanism involves the phenolic compounds neutralising free radicals — unstable molecules that contribute to skin ageing and inflammation. Additionally, the extract appears to modulate inflammatory pathways, which may explain its traditional use for skin conditions involving redness or irritation.
Clinical Evidence & References
In vitro and animal studies suggest the extract has measurable antioxidant and anti-inflammatory activity. Research on related Eugenia species (Eugenia brasiliensis) demonstrated significant inhibition of oedema in topical inflammation models, with isolated phenolic compounds showing particularly strong activity.
However, human clinical trials specifically evaluating Eugenia uniflora leaf extract in skincare are limited. Most evidence comes from traditional use and laboratory studies of related plant species. More robust human studies would help clarify its efficacy and optimal concentration ranges in cosmetic applications.
Published Research
How to Use
This ingredient is most commonly found in astringent toners, essences and lightweight serums designed for oily or combination skin. It typically works well as part of a multi-ingredient formulation rather than as a standalone treatment. Apply after cleansing and before moisturiser, or use in a toner step. As with any new ingredient, introduce it gradually to monitor skin tolerance.
Safety & Precautions
Frequently Asked Questions
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