Science
Mechanism of Action
It coats mineral filters like Titanium Dioxide, preventing the generation of reactive oxygen species. On the skin, it forms a thin film that absorbs oil, providing a mattifying effect, and acts as an amphoteric pH buffer.
Research
Clinical Evidence
High confidence0.9%
Key findings
- 01 Effectively treats Titanium Dioxide in sunscreens to reduce photocatalytic activity.
- 02 Functions as a pigment stabilizer and opacifier in lipsticks with no systemic toxicity.
- 03 Maximum reported safe concentration for leave-on products, including eye area cosmetics.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an amphoteric compound, it is most stable and least soluble in the near-neutral pH range (5.5-8.5). Extreme pH environments (<4 or >9) can compromise its structure or solubility.
Conflicts
- Strong acids
- Strong oxidizing agents
- Aluminum-sensitive chelating agents
Safety
Safety Profile
The CIR Expert Panel and SCCS confirm its safety in current cosmetic practices. It is chemically inert with limited skin penetration.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable multi-functional ingredient, Aluminum Hydroxide enhances product stability, broadens applicability across skin types, and improves cosmetic elegance and performance.
Related
Similar Ingredients
Finding similar ingredients…