What is Aluminum Hydroxide?

Aluminum Hydroxide functions in skincare and cosmetics as a/an cosmetic color, emollient moisturizing, humectant moisturizing, opacifying aka makes the formula less clear, skin protecting, viscosity controlling ingredient.

More information on Aluminum Hydroxide (if available)

A synthetic ingredient that functions as an opacifying agent and skin protectant. Secondary uses include coloring agent and absorbent.

Is this a restricted ingredient*?
IV/118