title: Safety assessment of nylon as used in cosmetics.
abstract: The Cosmetic Ingredient Review Expert Panel (Panel) reviewed the safety of nylon polymers, which function in cosmetics primarily as bulking and opacifying agents. The Panel reviewed relevant animal and human data related to these large polymers and determined that they are not likely to penetrate the skin. Whatever residual monomers may be present were not present at a sufficient level to cause any reactions in test subjects at the maximum ingredient use concentration. Accordingly, the Panel concluded that these ingredients are safe in the present practices of use and concentration.
authors.affiliation: Cosmetic Ingredient Review Scientific Analyst/Writer, Washington, DC, USA.
authors.forename: Christina
authors.initials: C
authors.lastname: Burnett
authors.affiliation: Cosmetic Ingredient Review Chemist, Washington, DC, USA.
authors.forename: Bart
authors.initials: B
authors.lastname: Heldreth
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Wilma F
authors.initials: WF
authors.lastname: Bergfeld
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Donald V
authors.initials: DV
authors.lastname: Belsito
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Ronald A
authors.initials: RA
authors.lastname: Hill
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Curtis D
authors.initials: CD
authors.lastname: Klaassen
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Daniel C
authors.initials: DC
authors.lastname: Liebler
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: James G
authors.initials: JG
authors.lastname: Marks
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Ronald C
authors.initials: RC
authors.lastname: Shank
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Slaga
authors.affiliation: Cosmetic Ingredient Review Expert Panel Member, Washington, DC, USA.
authors.forename: Paul W
authors.initials: PW
authors.lastname: Snyder
authors.affiliation: Former Director, Cosmetic Ingredient Review, Washington, DC, USA.
authors.forename: F Alan
authors.initials: FA
authors.lastname: Andersen
mesh_terms: D000328:Adult; D000818:Animals; D003257:Consumer Product Safety; D003358:Cosmetics / Q000633:toxicity*; D017453:Dermatitis, Irritant / Q000209:etiology*; D004285:Dogs; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008297:Male; D051379:Mice; D009059:Mouth Diseases / Q000139:chemically induced*; D009757:Nylons / Q000633:toxicity*; D010532:Peritoneal Diseases / Q000139:chemically induced*; D011817:Rabbits; D051381:Rats; D017208:Rats, Wistar; D018570:Risk Assessment; D014481:United States
chemical_list: D003358:Cosmetics; D009757:Nylons
keywords: nylon; safety