The material selection platform
Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients


CAS Number 12042-91-0
Chem/IUPAC Name: Dialuminium chloride pentahydroxide
EINECS/ELINCS No: 234-933-1
COSING REF No: 31452
Aluminum Chlorohydrate is a common ingredient used in cosmetics, particularly in antiperspirants and deodorants. It is an aluminum salt derived from chlorohydroxy acids and appears as a white, crystalline solid or a colorless liquid, depending on its formulation. Aluminum Chlorohydrate functions as an antiperspirant agent by temporarily blocking sweat glands, reducing perspiration and odor. It forms a gel-like plug in the sweat ducts, hindering the release of sweat onto the skin's surface. Additionally, Aluminum Chlorohydrate is also gentle and non-irritating on the skin. The chemical formula of Aluminum Chlorohydrate is Al2ClH9O7.


Aluminum Chlorohydrate finds significant use in both cosmetics and skincare products for different purposes.
  • Cosmetic products: It is primarily employed as an antiperspirant agent. It works by temporarily reducing sweat production, helping to control underarm wetness and odor. This makes it a key ingredient in antiperspirant and deodorant formulations, providing individuals with a sense of dryness and freshness throughout the day
  • Skin care: It is sometimes used in topical products targeting specific skin concerns. It can be found in some acne treatments and astringents due to its ability to reduce excess oil and minimize pore size. Additionally, it is occasionally included in products intended to address excessive sweating in other areas of the body, such as the palms or feet


Aluminum Chlorohydrate is typically produced by reacting aluminum hydroxide with hydrochloric acid. The reaction results in the formation of aluminum chloride, which further reacts with water to form Aluminum Chlorohydrate. The process involves careful control of temperature, pH, and concentration to obtain the desired product.

What does ALUMINUM CHLOROHYDRATE do in a formulation?

  • Antiperspirant
  • Deodorant

Safety profile

Aluminum Chlorohydrate is considered safe for use in cosmetics and skincare products. It has been extensively tested for its safety, and there have been close to zero side effects. However, as with any ingredient, individual sensitivities or allergies can occur. Therefore, patch testing is recommended and it is advisable to discontinue use if any adverse reactions are experienced.


Technical profile

Property Values
Boiling Point 100°C
pH 3.0-5.0
Solubility Soluble in water
Viscosity High
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