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Moumoujus

CITRUS SINENSIS VALENCIA PEEL OIL EXPRESSED.

Valuable CAS 97766-30-8 / PERFUMING

A nutrient-dense essential oil cold-pressed from the outer rinds of Valencia oranges, prized for its high limonene content and invigorating aromatic profile. In precision skincare, it serves as a multi-functional botanical that bridges the gap between antimicrobial protection and antioxidant-driven radiance.

Summary

Antioxidant Antimicrobial Sebum Regulator Fragrance Microcirculation Enhancer

Science

Mechanism of Action

The oil utilizes a high concentration of monoterpenes—specifically limonene, myrcene, and alpha-pinene—to scavenge free radicals and mitigate oxidative stress from UV and pollutants. Its bioactive compounds regulate sebum production and stimulate microcirculation, which enhances nutrient delivery to the dermis, while its natural antimicrobial properties inhibit the growth of common skin pathogens like S. aureus and E. coli.

Research

Clinical Evidence

High confidence
Effective range 0.005–15%
Optimal

0.1%

Key findings

  1. 01 Dermatological testing of a 15% concentration in a balm format demonstrated zero irritation and high physical stability.
  2. 02 Established Minimum Inhibitory Concentrations (MIC) for S. aureus at 10.41 mg/mL and E. coli at 13.02 mg/mL.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.01%
Red flag below
0.005%

Due to its potent scent, it is frequently used at 'label claim' levels (under 0.01%) purely for fragrance. While it provides sensory benefits at these levels, concentrations closer to 0.1% or higher are required to achieve measurable antioxidant and antimicrobial effects.

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 4.5
0 7 14

Stability

Highly volatile and sensitive to oxidation. Must be stored in UV-opaque containers and stabilized with antioxidants like Tocopherol to prevent the formation of sensitizing limonene oxides. Should be incorporated during the cool-down phase (<40°C).

Synergies

  • Vitamin E (Tocopherol)
  • Ascorbic Acid
  • Ferulic Acid

Conflicts

  • High heat
  • UV exposure
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
0.0015%
Pregnancy
Safe
Sensitization risk Moderate

Safety is contingent on 5-methoxypsoralen (5-MOP) levels remaining below 15 ppm in leave-on products. It is phototoxic; users should avoid direct UV exposure for 12 hours post-application. Oxidized oil significantly increases the risk of contact dermatitis.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

A high-performance botanical for brightening and microbial balance, provided it is stabilized against oxidation and used with sun protection.

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