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Polyquaternium 37

* Anti-static agent and film former


Polyquaternium 37 is one of the most widely-used members of the Polyquaternium group (similar ingredients with different numbers to indicate their chemical compositions) and is an anti-static agent and film former seen primarily in hair care products. A patent filed by a European beauty company notes that Polyquaternium 37 (in conjunction with fatty alcohol and a surfactant) provides "hair conditioning composition with excellent body enhancing and volume up effect especially for fine hair and also gives hair excellent combability, elasticity and shine;" it goes on to say that it does not way hair down either.

Polyquaternium 37 works by providing a positive charge to counteract the negative charge often found in shampoos and other hair care products. They bond ionically to the hair and "and provide conditioning benefits such as ease of combing, hair alignment, elasticity and shine," according to the Hairlicious blog.

Safety Measures/Side Effects:

Polyquaternium 37 is considered a low hazard ingredient by the Cosmetics Database, which only notes data gaps and bioaccumulation as a concern. No other studies were found that reported any negative side effects or adverse reactions.

Recommended Products w/ Polyquaternium 37:

Pure Basic Tea Tree and Rosemary Anti-Dandruff Shampoo and Conditioner, Head Organics Hair Spray and Leave In Conditioner, Kronos Phyx Overnight Repair Mask
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