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.
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.
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.
Scan the full ingredient label and understand if it's safe for your child.
This ingredient has the following documented risks:
Tap or hover over labels to see detailed risk information.
This ingredient may also be listed as:
Always check ingredient labels carefully, as ingredients may be listed under different names.
This ingredient is found in the following products:
This list shows products that contain Behentrimonium Methosulfate or its alternative names.
Yes, Behentrimonium Methosulfate is generally considered safe for adults based on current research.
Could weaken or confuse immune system.
Can make breathing issues like asthma worse in babies and kids.
May harm organs like liver, kidneys, or lungs with repeated use.
Some studies link this to future fertility or reproductive issues.
Behentrimonium Methosulfate is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.
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.
Use our camera scanner to analyze more ingredient labels
Scan Another Product