It is a UVB inhibitor and is typically used in hair care products
Cinnamidopropyltrimonium chloride is a quaternary ammonium compound derived from cinnamic acid. It is commonly used in hair care products as a conditioning agent to improve the manageability and appearance of hair, leaving it soft and smooth. This ingredient also provides some level of UV protection for the hair.
below are all the active ingredients for the Pureology Hydrate Shampoo Certified Organic Botanicals of Rose, Sandalwood, Green Tea, Sodium Lauryl Sulfoacetate, Disodium Laureth Sulfosuccinate, Sodium Cocyl Isethionate, Sodium Lauryl Sarcosinate, Cocamidopropyl Hydroxysultaine, Cocamidopropylamine Oxide, ,Glycol Distearate, Decyl Glucoside, Amodimethicone, C11-15 Pareth 7, Laureth-9, GLYCERIN, Trideceth 12, Cinnamidopropyltrimonium Chloride (Sunscreen), Sunflower Seed Extract (Heligenol), Melanin, TOCOPHERYL ACETATE, Ascorbic Acid, Superoxide Dismutase (Antioxidants), Hydrolyzed Oat Protein, Wheat Amino Acids Protein Complex, Hydrolyzed Soy Protein, Lauryl Alcohol, Guar Hydroxypropyltrimonium Chloride, Polyquaternium 7, QUANTERNIUM-26, Glycerth-26, MethylPARABENS, PropylPARABENS, Butylene Glycol, Methylchloroisothiazolinone, Methylisothiazolinone, EXT DC VIOLET 2 (Food Grade), Aroma Therapy FRAGRANCE