Aluminum Chlorohydrate

CAS: 1327-41-9 | Synonyms: Aluminium Chlorohydrate, ACH, Aluminum Hydroxychloride +2

Safer alternative: Potassium Alum

Toxicity Score

5 /10
Caution

Primary Concern

Skin irritation

Found In

Antiperspirants, Deodorants, Foot Sprays

Persona Risk

Medium Risk for Skin & Allergy

Put Simply

Aluminum chlorohydrate is often found in antiperspirants and deodorants because it helps keep you dry by blocking sweat ducts. While it's generally considered safe, some people with sensitive skin might notice irritation or allergic reactions. Concerns about effects on the brain mainly come from broader aluminum exposure, and the direct link to everyday products like deodorants isn't clear, so it's a moderate risk.

Clinical Summary

Aluminum chlorohydrate is commonly used in antiperspirants and deodorants to reduce sweat by temporarily blocking sweat ducts. While generally considered safe for topical use, some studies suggest a potential link to skin irritation and allergic reactions in sensitive individuals. Concerns about neurotoxicity arise primarily from aluminum exposure in general, though the direct link from cosmetics remains unclear and controversial.

Identified Health Risks

Skin irritation
Potential neurotoxicity
Allergy

What This Score Means

Use Caution. This ingredient scores 5/10. While not the worst offender, it has documented risks — especially for sensitive individuals, pregnant women, or children.

Regulatory Status

Cross-referenced safety assessments from regulatory bodies

Organization
Rating
Concern
EWG
5
Potential for skin irritation and concerns about aluminum exposure.
ECHA
Not classified as hazardous
General safety within recommended usage, no specific classification as a carcinogen or a mutagen.

Also Listed On Labels As

Aluminium Chlorohydrate ACH Aluminum Hydroxychloride Aluminum Chloride Hydroxide Aluminum Chloride Hydroxide Complex

Risk by Health Profile

Skin & Allergy Medium Risk

May cause skin irritation and allergic reactions in some individuals.

Chronic & Autoimmune Medium Risk

Aluminum compounds have been associated with potential neurotoxicity, though evidence is not conclusive.

Frequently Asked Questions

Sources & Citations

  1. [1]
    EWG Skin Deep (EWG ID: 700206)
  2. [2]
    PubMed Central (PMID: 23271812)
  3. [3]
    ECHA (EC Number: 244-326-6)

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