Allergic contact dermatitis to Tinosorb S, Scutellaria baicalensis, and other emerging allergens in cosmetics

Contact Dermatitis. 2020 May;82(5):307-309. doi: 10.1111/cod.13460. Epub 2020 Jan 11.

Abstract

Patch tests are highly recommended in eczema patients with eyelid involvement. Sunscreen constitutes a potential cause of eyelid or facial allergic contact dermatitis, and should be considered in patients with refractory eczema on these locations. We report a patient sensitized to several emerging allergens such as bis-ethylhexyloxyphenol methoxyphenyl triazine (Tinosorb S), Scutellaria baicalensis extract, and propylene glycol with an eyelid dermatitis. Patch tests to the combined ingredients propylene carbonate, cyclopentasiloxane, and disteardimonium hectorite; and talc, Cl 77 491, and dimethicone/methicone copolymer were also positive. We highlight the importance of systematically patch testing with the cosmetics brought in by our patients, as well as with the individual ingredients whenever positive. The identification of emerging allergies to new compounds in cosmetics mainly depends on this practice.

Keywords: Scutellaria baicalensis extract; CAS no. 187393-00-6; CAS no. 94279-99-9; Tinosorb S; allergic contact dermatitis; bis-ethylhexyloxyphenol methoxyphenyl triazine; case report; organoclay; propylene carbonate, cyclopentasiloxane, and disteardimonium hectorite; propylene glycol; talc, Cl 77491, and dimethicone/methicone copolymer.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Dermatitis, Allergic Contact / etiology*
  • Eyelid Diseases / chemically induced*
  • Female
  • Humans
  • Patch Tests
  • Phenols / adverse effects*
  • Plant Extracts / adverse effects*
  • Propylene Glycol / adverse effects*
  • Scutellaria baicalensis
  • Triazines / adverse effects*

Substances

  • Phenols
  • Plant Extracts
  • Scutellaria baicalensis extract
  • Triazines
  • Propylene Glycol
  • bis-ethylhexyloxyphenol methoxyphenyl triazine