Aluminum Zirconium Tetrachlorohydrex Gly
Aluminum zirconium tetrachlorohydrex glycine
- Role
- Temporarily reduces sweat release in the treated area.
- Catalog formulas
- 9
- Type
- Active
- Verified
- 06.11.2026
What does this ingredient do in an antiperspirant?
A complex aluminum-zirconium salt stabilized with the amino acid glycine. Like other aluminum salts, it forms temporary gel plugs in the sweat ducts that clear as the skin renews itself.
Part of a system, not a label in isolation
It is found in sticks, gels and roll-ons. The FDA allows this active at up to 20% (calculated on an anhydrous basis) in non-aerosol forms only; in the EU, aluminum-zirconium complexes are likewise banned from aerosol dispensers.
In the EU it is permitted only in antiperspirants: up to 20% as the anhydrous complex and up to 5.4% as zirconium, with the mandatory warning "do not apply to irritated or damaged skin". The SCCS considers aluminum compounds safe in cosmetics within the limits assessed in opinion SCCS/1662/23.
Under FDA rules, the label must say not to use it on broken skin and to stop use if a rash or irritation occurs. Stinging is more likely on damp or freshly shaved skin.
It is not the same as Aluminum Chlorohydrate: the FDA allows the chlorohydrate at up to 25% and in aerosols too, while aluminum-zirconium salts are capped at 20% and limited to non-aerosol forms. It differs from Trichlorohydrex Gly and Octachlorohydrex Gly in the ratio of aluminum, zirconium and chlorine atoms set by the US Pharmacopeia (USP–NF).
Products containing Aluminum Zirconium Tetrachlorohydrex Gly
Links are based on the complete published INCI list for the exact product version.
Sources
The conclusions apply to the stated conditions and jurisdictions, not automatically to every concentration or product.
- FDA OTC Monograph M019 Supports: list of active ingredients, permitted concentration, dosage form, label warnings
- Regulation (EC) 1223/2009, Annex III, entry 50 Supports: permitted concentration, restrictions, label warnings
- SCCS/1662/23: safety of aluminum in cosmetic products Supports: safety assessment, conditions of use