Science
Mechanism of Action
It primarily functions as an absorbent by drawing in excess oil and sweat, and as an astringent by inducing a tightening sensation. In formulations, it can also act as a buffering agent and a corrosion inhibitor.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 Delivers a tightening sensation and 'dry powdery feel' by absorbing moisture and sebum, effective between 0.1% and 10%.
- 02 Maintains formulation stability while providing astringent benefits in sprayable cosmetic lotions at 0.25% - 1.0%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This stable, non-volatile white powder is effective in acidic systems (pH 3-5) and commonly formulated between pH 4.5 and 6.5. High concentrations may disrupt emulsion stability due to high ionic strength.
Conflicts
- High concentrations of certain non-ionic emulsifiers (e.g., Glyceryl Stearate, PEG-100 Stearate)
- Strong acids/bases
- Sensitive water-based thickeners that cannot tolerate high ionic strength
Safety
Safety Profile
While a dedicated CIR monograph is pending, general SCCS assessments support aluminum compounds' safety up to 6.25% (non-spray) and 10.6% (sprays), aligning with suggested cosmetic usage levels.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Aluminum Triphosphate is a valuable ingredient for managing oiliness and providing a dry-touch finish, particularly beneficial for oily and sensitive skin types.
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References
Sources