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Moumoujus

ORIGANUM COMPACTUM OIL.

Avoid CAS 90082-26-1 (generic) / FRAGRANCE, PERFUMING

Origanum Compactum Oil, derived from the wild oregano plant, is a highly potent essential oil recognized for its significant antimicrobial, anti-inflammatory, and antioxidant properties. Due to its dermocaustic nature, precise formulation and extreme dilution are critical for safe topical application.

Summary

Antimicrobial/antibacterial Antioxidant Anti-inflammatory Fragrance

Science

Mechanism of Action

The primary active compounds, carvacrol and thymol, exert potent antimicrobial action by disrupting bacterial cell membranes, leading to increased permeability and cellular damage. Beyond its antibacterial efficacy, it demonstrates anti-inflammatory effects and robust antioxidant activity through free radical scavenging, inhibition of collagenase, elastase, and hyaluronidase enzymes, and promotion of collagen synthesis, contributing to skin health and anti-aging potential.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–1.5%
Optimal

N/A

Key findings

  1. 01 Demonstrated in vivo anti-acne efficacy (using Origanum vulgare essential oil nanoemulsion) by promoting healing and exhibiting superior antimicrobial effects against P. acnes in a mouse model.
  2. 02 Recommended for topical relief of psoriasis when carefully diluted in a carrier oil, suggesting a concentration equivalent to no more than 5 drops per tablespoon.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.5%
Red flag below
1.5%

Given its potent effects and significant irritancy at higher concentrations, Origanum Compactum Oil is frequently included in formulations at sub-efficacious levels (below 0.5%) to claim benefits without risking irritation. Conversely, concentrations exceeding 1.5% for general topical use are a red flag, indicating a high probability of adverse skin reactions.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This essential oil exhibits poor water solubility and high volatility. It is susceptible to degradation by heat, air, and light, requiring storage in amber glass containers under cool, dark conditions to maintain stability and efficacy.

Conflicts

  • Direct application to skin (dermocaustic effect)
  • Aqueous formulations without robust emulsification systems (due to poor water solubility)
  • High concentrations or improper dilution on any skin type, particularly sensitive skin

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
1.5%
Pregnancy
Caution
Sensitization risk High

Origanum Compactum Oil is classified as dermocaustic and must never be applied undiluted to the skin. It is a known irritant to skin and eyes and presents a high potential risk for skin and respiratory sensitization. A maximum concentration of 1.5% is recommended for general topical use, as higher concentrations are associated with increased irritation. Specific natural compounds like linalool and limonene may also trigger allergic reactions in predisposed individuals. Use is strictly not recommended during pregnancy or breastfeeding, nor for children under 6 years of age.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

While demonstrating potent antimicrobial and anti-inflammatory benefits, Origanum Compactum Oil's dermocaustic nature and high irritancy necessitate extreme caution and precise low-dose formulation, rendering it generally unsuitable for sensitive skin and a high-risk ingredient for broad cosmetic application, warranting an 'avoid' rating for Moumoujus formulations.

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