Tonic

Citrus Grandis Peel Extract

INCI: CITRUS GRANDIS PEEL EXTRACT

Reviewed by Emma · Last updated 14 Aug 2026

Also known as: Citrus Grandis Peel Extract

A citrus peel extract with antioxidant properties traditionally used to tone and condition skin

Best For Skin Types

All, Oily, Combination

Addresses

Fine lines, Dryness, Sensitivity

Usage Frequency

Daily

What Is Citrus Grandis Peel Extract?

Citrus Grandis Peel Extract is derived from grapefruit peel and contains a concentrated mix of natural compounds, primarily phenolic compounds and flavonoids. These are plant molecules known for their antioxidant activity. The extract is obtained through solvent extraction methods and appears in roughly 0.1% of skincare formulations.

In skincare products, it functions as an astringent, skin conditioning agent, and tonic. The antioxidant profile suggests it may help protect skin from oxidative stress, though its use in cosmetics remains relatively uncommon.

How It Works

Citrus Grandis Peel Extract works primarily through its antioxidant compounds. When applied to skin, these molecules can donate electrons to free radicals, preventing them from damaging skin cells. Free radicals are unstable molecules created by UV exposure, pollution, and normal metabolic processes — they can degrade collagen and elastin if left unchecked.

The extract may also influence cell signalling pathways involved in skin ageing and inflammation, though this mechanism has been observed mainly in laboratory studies rather than human skin.

Clinical Evidence & References

Laboratory studies on citrus peel extracts (including both Citrus Grandis and related species) show promise. Research indicates the extract can reduce reactive oxygen species (ROS) levels in skin cells exposed to UVB radiation, reduce markers of cell senescence, and support normal cell differentiation in keratinocytes. These findings suggest potential protective benefits against photoageing.

However, most evidence comes from in vitro (test tube) and cell-based studies rather than human trials. Direct clinical evidence on how effective this ingredient is when applied to human skin in cosmetic formulations remains limited. The ingredient's rarity in skincare products means real-world efficacy data is sparse.

How to Use

Citrus Grandis Peel Extract is typically used as part of a broader formulation rather than a standalone treatment. Use products containing this ingredient as directed — usually once or twice daily. It works well alongside other antioxidants and sun protection. Because citrus extracts can occasionally cause photosensitivity in sensitive individuals, apply sunscreen daily if using products containing this ingredient.

Safety & Precautions

Generally well-tolerated in cosmetic concentrations. Citrus-derived ingredients can occasionally cause irritation or photosensitivity in sensitive skin, particularly if used in high concentrations or without sun protection.

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