Aluminum Zirconium Tetrachlorohydrex Gly

Reduces odor or sweat.

What it is

A compound of aluminum and zirconium combined with glycine, an amino acid.

Used as an antiperspirant, which reduces sweating, and as a deodorant.

A short summary from the dictionary, not yet an in-depth article. About these entries

Reduces odor or sweatOfficial EU function: Antiperspirant

Gives a tightening feelOfficial EU function: Astringent

Restricted in certain uses · Cosmetics, EU

Allowed in EU cosmetics within the limits the entry sets, only in anti-perspirants (Annex III, entry 50).

A label gives no amounts, so none of this says a product is unsafe.