Irritant

Alcloxa

INCI: Aluminum Chlorohydroxy Allantoinate

Reviewed by Kate · Last updated 14 Aug 2026

Also known as: Aluminum Chlorohydroxy Allantoinate

Combination of sodium salt of aluminum + allantoin Used to support skin comfort

Best For Skin Types

All skin types

Usage Frequency

As directed on product packaging

What Is Alcloxa?

Alcloxa, also known as aluminum chlorohydroxy allantoinate, is a combination of a sodium salt of aluminum and anti-irritant allantoin. In professional medical settings, alcloxa is used for wound healing and burn treatment. That’s because it has antimicrobial properties as well as its soothing abilities. In addition, it functions as a mild keratolytic agent (meaning it can help slough off damaged skin).

In cosmetics, alcloxa is used in antiperspirants and some skin care products, where it can serve as an astringent, producing a cooling sensation. These astringent properties can cause skin irritation, meaning that it’s best to avoid long-term use of alcloxa in leave-on products.

The United States Food and Drug Administration has authorized use of alcloxa in one medical preparation in amounts between 0.2 - 2%. The independent Cosmetic Ingredient Review hasn’t issued its own ruling on the safety of alcloxa, instead deferring to the FDA’s ruling that it is safe to use in these percentages.

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