
ALUMINUM HYDROXIDE
Description
Aluminum hydroxide is a versatile inorganic compound widely used in skincare and cosmetic formulations. This white, amorphous solid is prized for its multifunctional properties, serving as an opacifying agent, pH adjuster, and mild astringent. In sunscreens, aluminum hydroxide plays a crucial role as a coating for mineral UV filters like titanium dioxide and zinc oxide, enhancing their stability and performance.
The compound's ability to absorb excess oils and sebum makes it valuable in mattifying products and oil-control formulations. Its gentle astringent properties can help temporarily tighten pores and improve skin texture. Aluminum hydroxide also acts as a thickening agent, contributing to the desired consistency of creams, lotions, and gels.
In terms of safety, aluminum hydroxide is generally well-tolerated by most skin types. It has a low risk of irritation and is considered non-comedogenic, making it suitable for acne-prone skin. However, individuals with sensitive skin or known allergies to aluminum compounds should exercise caution.
When formulating with aluminum hydroxide, it's essential to consider its pH-dependent stability and potential interactions with other ingredients to ensure optimal product efficacy and shelf life.