Aluminium zirconium tetrachlorohydrex gly
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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. Its anhydrous form gives it the added ability of absorbing moisture. It is sometimes called AZG, and contains a mixture of monomeric and polymeric Zr4+ and Al3+ complexes with hydroxide, chloride and glycine.
Anhydrous aluminium zirconium tetrachlorohydrex gly functions by diffusing into the sweat gland and forming a colloidal "plug" which limits the flow of sweat to the skin surface. The plug is gradually broken down and normal sweating resumes.
When mixed with sweat, aluminium zirconium tetrachlorohydrex gly is known to stain clothing with a yellowish tint. It can also cause a stiffening of the affected areas of clothing. These stains can be removed with the application of vinegar or a mild bleach. If excessive amounts of aluminium zirconium tetrachlorohydrex gly mixed with sweat come in contact with a material, bleach marks may develop.