Science
Mechanism of Action
It diffuses into sweat glands, reacting with moisture and proteins to create a temporary colloidal plug. This plug physically blocks sweat from reaching the skin surface, gradually shedding via natural keratinization.
Research
Clinical Evidence
High confidence20%
Key findings
- 01 FDA allows concentrations up to 20% in OTC antiperspirants, confirming its role in effectively reducing perspiration.
- 02 A clinical study showed approximately 0.012% systemic absorption of aluminum after 6 days of use at 21% concentration.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Highly stable in anhydrous formulations such as sticks and soft solids; glycine (GLY) aids in stabilizing the aluminum-zirconium complex and maintaining efficacy.
Conflicts
- Strongly alkaline ingredients
- Chelating agents (e.g., citrate)
- Anionic surfactants
Safety
Safety Profile
FDA limits OTC antiperspirants to 20% (anhydrous). SCCS considers aluminum salts safe in non-sprayable cosmetics at regulated levels, but restricts use in aerosol products due to inhalation concerns.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is an essential and highly effective component for antiperspirant formulations, with robust regulatory and clinical support for its safety and efficacy at controlled concentrations.
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