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To the Editor:
—In a recent communication by Dr. P. J. Hanzlik (The Journal, September 29, p. 1134), he quotes a statement made incidentally in my textbook of "Physiological Chemistry" in the course of a discussion on surface tension. The statement is to the effect that sufficient ingestion of boric acid so prevents the secretion of oil in the skin that a rod touched to the skin and then to water no longer lowers the surface tension of water, and I put in the further statement that this loss of oil was accompanied by a falling out of the hair which might be total. Dr. Hanzlik criticizes this statement. He says: "This reference to the depilatory and antisebaceous actions of boric acid is not, however, supported by evidence in the book, and one searches in vain for evidence in the existing scientific and clinical literatures [italics mine], and in current
Mathews AP. "DEPILATORY AND ANTISEBACEOUS ACTIONS OF BORIC ACID". JAMA. 1923;81(16):1381. doi:10.1001/jama.1923.02650160055028
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