Antioxidant

Citrus Unshiu Fruit Extract

INCI: CITRUS UNSHIU FRUIT EXTRACT

Reviewed by Kate · Last updated 14 Aug 2026

Also known as: Citrus Unshiu Fruit Extract

A citrus extract with antioxidant and skin-conditioning properties

Best For Skin Types

All

Addresses

Fine lines, Hydration, Oxidative stress

Effective Concentrations

84-96%

Usage Frequency

Daily

What Is Citrus Unshiu Fruit Extract?

Citrus Unshiu Fruit Extract is derived from the Unshiu mandarin, a hybrid citrus species cultivated across East Asia. The extract is rich in flavonoids and other plant compounds that have been used traditionally in skincare and wellness practices.

In formulations, this ingredient functions primarily as an antioxidant and skin conditioner. It also has mild humectant properties, meaning it can help retain moisture in the skin, and emollient qualities that support the skin barrier.

Benefits for Your Skin

How It Works

The extract works through its flavonoid content, particularly compounds like naringenin and hesperetin. These act as antioxidants by donating electrons to neutralise reactive oxygen species — unstable molecules that can damage skin cells and collagen over time.

Additionally, the humectant nature of the extract allows it to draw moisture into the outer layers of skin and help seal it in. This dual action of antioxidant protection and hydration support makes it useful in formulations designed to address signs of ageing and dehydration.

Clinical Evidence & References

Research on Citrus unshiu extracts has shown promising in vitro results. Studies indicate that fermented versions of the extract may help reduce expression of matrix metalloproteinase-1 (MMP-1), an enzyme involved in collagen breakdown during UV-induced photoageing. Other research has demonstrated anti-inflammatory effects in cell and animal models.

However, most published evidence comes from laboratory and animal studies rather than human clinical trials. While these findings are encouraging, the scale and direct applicability to everyday skincare use in humans remains limited. Real-world efficacy in cosmetic products will also depend on concentration, formulation stability, and how the ingredient interacts with other components.

How to Use

Citrus Unshiu Fruit Extract is typically used in serums, toners, moisturisers, and treatment products. As it is present in formulations at relatively high concentrations (commonly 84-96%), you do not need to use it separately. Simply incorporate products containing it into your routine according to product instructions, usually daily morning and evening.

Safety & Precautions

Citrus extracts are generally well-tolerated in skincare. However, those with citrus sensitivity or fragrance sensitivity should patch test first, as some formulations may contain additional citrus-derived fragrance components.

Frequently Asked Questions

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Part of a family

Citrus Unshiu Fruit Extract is a variant of Citrus Unshiu Peel Powder, the form you will most often see on an ingredients list.

Citrus peel powder with antioxidant properties traditionally used in skincare formulations

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