Science
Mechanism of Action
As a positively charged molecule, it bonds ionically to negatively charged surfaces like keratin in hair or synthetic acrylic fibers. While it exhibits poor transdermal penetration, it acts as a potent hapten, frequently triggering Type IV hypersensitivity reactions upon skin contact.
Research
Clinical Evidence
High confidence0%
Key findings
- 01 Identified as a major contact allergen in textile-related dermatitis cases, accounting for over 20% of positive reactions in specialized dye testing.
- 02 Clinical patch testing confirmed strong positive reactions and significant cross-reactivity with p-Phenylenediamine (PPD).
Transparency
Dusting Analysis
This ingredient is prohibited in many regions; any presence in topical skincare is a significant safety concern rather than a 'dusting' issue.
The Formula
Formulation
Stability
Maintains high thermal stability up to 130°C and remains stable in acidic environments, though its cationic nature makes it highly reactive in certain mixtures.
Conflicts
- Anionic surfactants
- Strong oxidizing agents
- Strong reducing agents
Safety
Safety Profile
Explicitly prohibited for cosmetic use in the European Union (Annex II, Ref. No. 1259). Classified as a GHS Category 1 substance for serious eye damage.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Strictly prohibited in quality skincare due to its classification as a potent skin sensitizer and regulatory bans in major markets.
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