Five cases of allergic contact dermatitis caused by Basic Blue 99 contained in hair colour treatment products

Contact Dermatitis. 2025 Jan;92(1):82-83. doi: 10.1111/cod.14704. Epub 2024 Oct 2.

Authors

Kazue Nishioka¹, Akiko Koizumi¹, Yuko Takita¹

Affiliation

¹ Joy Dermatological Clinic, Yamaguchi, Japan.

PMID: 39354862
DOI: 10.1111/cod.14704

No abstract available

Keywords: Basic Blue; Basic Blue 99CAS 68123–13‐7 contact allergy direct hair dye.

Publication types

Case Reports