Aluminum Zirconium Tetrachlorohydrex Gly is a complex compound primarily used as an active ingredient in antiperspirants and deodorants. It functions by forming a gel-like plug within the sweat glands, thereby reducing perspiration and body odor.

Chemical Composition and Structure:

• Composition: This compound combines aluminum and zirconium salts with glycine (Gly) to enhance skin compatibility and efficacy.
• Structure: The complex structure includes aluminum and zirconium ions that interact with chloride ions to form a stable gel-like substance when applied to the skin.

Physical Properties:

• Appearance: Typically a white to off-white powder.
• Odor: Generally odorless, making it suitable for use in formulations without altering fragrance.
• Solubility: Soluble in water; can form a clear solution or gel when mixed with liquid.

Production Process:

1. Synthesis: The compound is synthesized through a controlled chemical reaction involving aluminum chloride, zirconium chloride, and glycine.
2. Purification: The resulting product undergoes purification to remove unreacted materials and impurities.
3. Formulation: The purified Aluminum Zirconium Tetrachlorohydrex Gly is then incorporated into antiperspirant or deodorant formulations.

Applications:

• Medical: Occasionally used in dermatological products for excessive sweating (hyperhidrosis).
• Cosmetics: Primarily used in antiperspirants and deodorants for its effective sweat-blocking properties.

INCI Functions

Antiperspirant. Controls both sweat and body odour by preventing sweat from reaching the stratum corneum with a preventive bactericidal action. If sweat has just reached the epidermal surface, it creates a temporary agglomeration on the sweat gland that will be removed by washing.

Cosmetic astringent. This ingredient exerts a direct effect on the skin by tightening dilated pores by contracting stratum corneum cells and removing superfluous oil.

Deodorant agent. When substances that give off an unpleasant odour are included in cosmetic formulations (typical examples are methyl mercaptan and hydrogen sulphide derived from garlic), deodorants attenuate or eliminate the unpleasant exhalation.

CAS: 134910-86-4

Cosmetic safety

Restricted cosmetic ingredient as III/50 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009. Substance or ingredient reported: Aluminium zirconium chloride hydroxide complexes AlxZr(OH)yClz and the aluminium zirconium chloride hydroxide glycine complexes. 

Maximum concentration in ready for use preparation 20% (as anhydrous aluminium zirconium chloride hydroxide) 5.4% (as zirconium).

1. The ratio of the number of aluminium atoms to that of zirconium atoms must be between 2 and 10 2. The ratio of the number of (Al+Zr) atoms to that of chlorine atoms must be between 0.9 and 2.1 3. Not to be used in aerosols dispensers (sprays).