Science
Mechanism of Action
MEK functions primarily as a powerful solvent in formulations, effectively dissolving other substances and enhancing product scent or perfuming the skin. It acts as a strong degreaser, but research indicates no positive mechanism of action for specific skincare advantages on the skin.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
MEK is a solvent and not considered an active ingredient subject to dusting analysis.
The Formula
Formulation
Stability
MEK is a volatile liquid. Its strong industrial solvent nature suggests potential instability and incompatibility within complex cosmetic formulations, particularly with sensitive active ingredients. No specific optimal pH range for its stability in skincare is reported.
Conflicts
- Likely incompatible with many sensitive cosmetic ingredients due to its strong solvent and defatting properties.
- Flammable liquids.
Safety
Safety Profile
MEK has not been specifically reviewed by the Cosmetic Ingredient Review (CIR) Expert Panel for its safety in topical skincare. While listed in cosmetic databases for fragrance and solvent roles, available information emphasizes its industrial hazards over skincare safety. The Scientific Committee on Consumer Safety (SCCS) mentions MEK as a vehicle for testing fragrance allergens, not as a directly assessed skincare ingredient. Acute human exposure can lead to irritation of the eyes, nose, and throat, and dermatitis has been documented following dermal exposure.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to its high irritancy, lack of skincare benefits, and significant safety concerns as a strong industrial solvent, MEK is not recommended for precision skincare formulations.
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