Aluminium zirconium tetrachlorohydrex gly is the INCI name for a preparation used as an antiperspirant in many deodorant products.
It is selected for its ability to obstruct pores in the skin and prevent sweat from leaving the body.
When mixed with sweat, aluminium zirconium tetrachlorohydrex gly is thought to stain clothing with a yellowish tint.
If excessive amounts of aluminium zirconium tetrachlorohydrex gly mixed with sweat come in contact with a material, bleach marks may develop.
Excessive deposits of aluminium zirconium tetrachlorohydrex gly on clothing may be removed during washing by adding a chelating agent - such as the citrate ions from mixing lemon juice and baking soda - to the wash. (Because only the conjugate base of citric acid can chelate, baking soda is necessary to neutralize the acid.)