Skin Conditioning

Citrus Limon Peel Water

INCI: CITRUS LIMON PEEL WATER

Reviewed by Emma · Last updated 14 Aug 2026

A citrus-derived water that may support skin hydration and reduce inflammatory responses

Best For Skin Types

All, Sensitive, Combination

Addresses

Dryness, Sensitivity, Redness, Hydration

Effective Concentrations

2%

Usage Frequency

Daily

What Is Citrus Limon Peel Water?

Citrus Limon Peel Water is an aqueous extract derived from lemon peel, containing water-soluble compounds including d-limonene and other polyphenols naturally present in citrus fruit. It functions as a skin conditioning agent in formulations, typically used at low concentrations.

The ingredient works by delivering these bioactive compounds to the skin's surface, where they may interact with cellular processes involved in hydration, inflammation and skin barrier function.

How It Works

The active compounds in citrus peel water, particularly d-limonene, interact with cellular signalling pathways that regulate inflammation and water transport. Research suggests d-limonene can inhibit inflammatory mediators by modulating NF-kappaB and STAT proteins—molecular switches that control inflammatory responses in skin cells.

Additionally, citrus peel extracts may influence aquaporin-3 (AQP3) expression, a water channel protein critical for maintaining cellular hydration and supporting skin barrier function. This dual mechanism addresses both inflammatory skin concerns and dehydration at a cellular level.

Clinical Evidence & References

In-vitro studies using human keratinocytes (skin cells) show that citrus peel extracts increase aquaporin-3 expression and reduce inflammatory cytokine production. Animal studies using atopic dermatitis models suggest that d-limonene, a key component of citrus peel, can reduce itching and inflammatory markers.

However, most research involves concentrated extracts or isolated compounds rather than peel water formulations at cosmetic concentrations. Evidence that citrus peel water at 2% concentration produces measurable skin benefits in humans remains limited. Further clinical studies would help establish efficacy in real-world skincare use.

How to Use

Citrus Limon Peel Water is typically used as a base ingredient or humectant in serums, toners and hydrating essences rather than as a standalone treatment. It works well layered with other hydrating or barrier-supporting ingredients. No specific usage frequency restrictions exist, though daily use is standard for hydrating products containing this ingredient.

Safety & Precautions

Citrus peel water is generally well-tolerated in cosmetic formulations. As with all citrus-derived ingredients, those with photosensitivity concerns should note that whilst peel water is not a concentrated essential oil, sun protection remains advisable when using any citrus-containing skincare.

Frequently Asked Questions

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations