Science
Mechanism of Action
This ingredient, chemically related to Ketoconazole, exerts an antimicrobial effect by controlling fungal proliferation on the skin. It primarily targets fungi like Pityrosporum orbiculare (Malassezia furfur), a known cause of dandruff and seborrheic dermatitis.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 1.0% concentration proves effective for mild to moderate dandruff and seborrheic dermatitis, often sufficient for long-term maintenance with minimal side effects.
- 02 2.0% concentration effectively eliminates fungal infections and significantly alleviates symptoms within two weeks, providing quicker relief and longer remission periods. However, it carries an increased risk of side effects like hair loss or irritation in 5.0% of patients.
Transparency
Dusting Analysis
Specific dusting thresholds are not identified in the research data, and this ingredient is typically used at low, precise concentrations.
The Formula
Formulation
Stability
This ingredient is highly stable within a pH range of 6.0-8.0. However, it is practically insoluble in water, especially precipitating above pH 5.5, and degrades significantly at very low pH values around 1.0.
Conflicts
- Formulations with very low pH (e.g., pH 1.0)
- High pH aqueous solutions where precipitation occurs
- Potential for hypersensitivity reactions and chemical irritation; discontinue use if these occur.
Safety
Safety Profile
The SCCNFP deemed it safe up to 2.0% in cosmetic products, yet advised against use by nursing mothers to avoid accidental intake. While FDA-approved as a topical antifungal, EWG highlights concerns including allergies, reproductive toxicity, and bioaccumulation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable antifungal agent highly effective for specific scalp and skin conditions, though usage requires careful consideration of concentration and potential for irritation in a subset of users.
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References
Sources