Behentrimonium Methosulfate

adultsSkin contact product

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Is this safe for adults to use Behentrimonium Methosulfate?

YES - Generally Safe
Danger Score: 2 (Lower is safer)
Quick Answer: Behentrimonium Methosulfate is generally considered safe for adults when used in topical products. Adults generally have higher tolerance.

ℹ️General Overview

For adults, this ingredient is commonly used in hair and skin products and is generally low risk when used as directed. A few lab and animal studies raise small concerns, so ordinary use is usually fine but extra caution is reasonable.

What to Do

Use products that contain it the way the label says. Don’t put products on broken skin. If you have sensitive skin or breathing problems, do a small patch test first or avoid it. If you are pregnant or trying to get pregnant, or if you have ongoing lung or nerve conditions, consider limiting extra exposure and ask your doctor if you’re unsure.

⚠️Warnings

Watch for redness, rash, itching, eye irritation, or breathing trouble after using a product — these can come from irritation or an allergic reaction (noted in the Cosmetic Ingredient Review and related quaternary ammonium reports). Some animal studies found reproductive effects at higher exposures (for example: “Quaternary Ammonium Disinfectants Cause Subfertility in Mice” and “Exposure to common quaternary ammonium disinfectants decreases fertility in mice”), and laboratory work has shown possible effects on nerve cells and hormone-related pathways (see studies on neurotoxicity and inhibition of cholesterol biosynthesis). If you have concerning symptoms or are in a sensitive group, stop use and talk to your healthcare provider.

Confidence: MEDIUM

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Safety Risk Labels

This ingredient has the following documented risks:

Immune system: Some studies of quaternary ammonium compounds report effects on immune responses and signs of allergic or respiratory reactions. A 2021 human study found altered toxicological endpoints after exposure to common quaternary ammonium disinfectants, which supports concern about immune effects.
Asthma: There is limited evidence that quaternary ammonium compounds can cause respiratory irritation or trigger allergic-type breathing problems. Human data showing altered toxicological endpoints after exposure raise concern that breathing issues or asthma could get worse in sensitive children.
Organ Risk: A human study reported changes in toxicological measures after exposure to common quaternary ammonium disinfectants, indicating possible harm to non-reproductive organs (for example, lungs or other systems) with repeated exposure.
Fertility: Animal studies in mice have shown decreased fertility or subfertility after exposure to quaternary ammonium disinfectants at moderate doses (see studies: "Exposure to common quaternary ammonium disinfectants decreases fertility in mice" and "Quaternary Ammonium Disinfectants Cause Subfertility in Mice by Targeting both Male and Female Reproductive Processes"). This shows real reproductive risk in animals that may be relevant with significant exposure.

Tap or hover over labels to see detailed risk information.

Alternative Names for Behentrimonium Methosulfate

This ingredient may also be listed as:

behentrimonium methosulfateBEHENTRIMONIUM METHOSULFATEEC 279-791-1SCHEMBL126381CTK3E8211DTXSID00231231DOCOSYL(TRIMETHYL)AZANIUM,METHYL SULFATEDOCOSYL(TRIMETHYL)AZANIUM;METHYL SULFATESC-25218DOCOSYL-TRIMETHYL-AZANIUM; SULFONATOOXYMETHANEQ27262812EINECS 279-791-1

Always check ingredient labels carefully, as ingredients may be listed under different names.

Products Containing Behentrimonium Methosulfate

This ingredient is found in the following products:

This list shows products that contain Behentrimonium Methosulfate or its alternative names.

Common Questions About Behentrimonium Methosulfate

Is this safe for adults to use Behentrimonium Methosulfate?

Yes, Behentrimonium Methosulfate is generally considered safe for adults based on current research.

What are the immune system risks of Behentrimonium Methosulfate for adults?

Could weaken or confuse immune system.

What are the asthma risks of Behentrimonium Methosulfate for adults?

Can make breathing issues like asthma worse in babies and kids.

What are the organ risk risks of Behentrimonium Methosulfate for adults?

May harm organs like liver, kidneys, or lungs with repeated use.

What are the fertility risks of Behentrimonium Methosulfate for adults?

Some studies link this to future fertility or reproductive issues.

What products contain Behentrimonium Methosulfate?

Behentrimonium Methosulfate is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.

When can adults using products with Behentrimonium Methosulfate?

The appropriate age depends on the specific ingredient properties and concentration. This analysis is for adults. Use the age selector above to check other ages.

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