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Case Reports
July 1973

Irritant Contact Dermatitis From Agave americana LIncorrect Use of Sap as "Hair Restorer"

Author Affiliations

San Francisco; Vancouver, British Columbia, Canada; San Francisco
From the University of California School of Medicine, San Francisco (Mr. Kerner and Dr. Maibach), and the University of British Columbia, Vancouver, Canada (Dr. Mitchell).

Arch Dermatol. 1973;108(1):102-103. doi:10.1001/archderm.1973.01620220064017

The sap of the plant Agave americana, incorrectly named "cactus juice" and used as a "hair restorer," evoked contact urticaria followed by acute eczematous dermatitis of the skin of the scalp, forehead, and wrist. Open patch tests with fresh sap produced burning pain, follicular contact urticaria, and subsequent irritant dermatitis in the patient and in two control subjects.