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CITRUS/UNSHIU/AURANTIUM/RETICULATA PEEL OIL.

Avoid / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

This ingredient, encompassing Mandarin (Citrus Reticulata) and Satsuma (Citrus Unshiu) peel oils, is an essential oil extracted from citrus rinds. While it offers purported benefits such as sebum balancing, skin brightening, and antioxidant protection, its inclusion in formulations is highly restricted due to significant safety concerns.

Summary

Perfuming Deodorant Flavoring Masking Antioxidant Anti-inflammatory Antibacterial Skin brightening Moisturizing Toning Sebum balancing

Science

Mechanism of Action

CITRUS/UNSHIU/AURANTIUM/RETICULATA PEEL OIL acts through multiple pathways. Citrus Reticulata Peel Oil helps regulate sebum production, which may prevent imperfections, and exhibits anti-inflammatory effects via monoterpenes to calm redness and tightness. It also provides antioxidant and antibacterial properties, primarily due to limonene and myrcene, supporting skin regeneration and potentially reducing the appearance of fine lines. Citrus Unshiu Peel Extract contributes to skin brightening by inhibiting tyrosinase, a key enzyme in melanin synthesis. Furthermore, its rich composition of carotenoids, coumarins, limonoids, and flavonoids offers broad antioxidant protection against UV damage and oxidative stress, with coumarins also providing anti-inflammatory benefits.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Citrus peel essential oils are inherently oil-soluble. Innovative nanoemulsion technology can enhance their hydrophilicity and overall stability, potentially improving their integration and efficacy in diverse cosmetic applications.

Conflicts

  • Sun exposure: Due to the presence of photosensitizing furanocoumarins, particularly 5-methoxypsoralen (5-MOP) and 7-methoxycoumarin, direct sun exposure or use before UV exposure must be strictly avoided.
  • High peroxide levels: Limonene-rich oils are susceptible to oxidation; peroxide values should be maintained below 20 mmol/l to ensure stability and minimize potential for irritation.
  • Other sensitizing or phototoxic ingredients: Co-formulating with other botanicals or compounds that contain similar constituents (e.g., limonene, citral) may amplify sensitization or phototoxicity risks.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
0.0015%
Sensitization risk High

The CIR Expert Panel deems this ingredient safe under strict restrictions. Finished products, excluding rinse-off formulas, must not exceed 0.0015% (15 ppm) 5-methoxypsoralen (5-MOP) and 100 ppm of 7-methoxycoumarin. Formulations must also be verified as non-sensitizing and non-irritating. This ingredient is known to be photosensitizing; therefore, its use in products intended for sun exposure or application prior to sun exposure is contra-indicated. It contains limonene (80-97%), a frequent skin sensitizer. While FDA generally recognizes Citrus reticulata derivatives as safe for food use (GRAS), its topical application requires considerable caution.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Avoid

Despite potential benefits in sebum balancing, brightening, and antioxidant activity, the significant risks of photosensitivity, high irritancy, and sensitization associated with this ingredient warrant its avoidance in precision skincare formulations.

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