Eczema-Like Psoriasiform Skin Reaction Related to Brazilian Keratin Treatment

May 2026

Vera Wang, Antonella Tosti

A recent report highlights an eczema-like psoriasiform skin reaction associated with the Brazilian keratin treatment (BKT), a popular hair-straightening procedure. Originating in Brazil in 2003, BKT has gained global popularity, particularly among women with curly or frizzy hair. The treatment involves applying a keratin-based product to the hair and sealing it with heat. Despite its widespread use, this report underscores potential adverse skin reactions, emphasizing the need for awareness and caution among users and practitioners.

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