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Peter Flesch, MD, PhD

Arch Dermatol. 1970;101(4):475-482.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

During the past five years more progress has been made in clarifying the chemistry of the red pigments of human hair and chicken feathers than in 50 years of chemical research on black melanins. This progress was largely due to the brilliant work of Prota, Nicolaus, and their co-workers.^1-3 Identification of the chemical structure of the nonprotein ("red melanin") part of these pigments shed light on many heretofore unexplained aspects of pigmentation in red animals. The day is far away when Sorby, the discoverer of the "pink constituent" of human red hair, could write: "The presence of the substance cannot have any material influence on the general tint"⁴; and it seems ludicrous that a mere 17 years ago the very existence of these substances was questioned⁵ and this challenge uncritically accepted in the dermatologic literature. From our own work the concept has emerged that the red pigmentary . . . [Full Text PDF of this Article]

Author Affiliations
f Philadelphia

From the Department of Dermatology, University of Pennsylvania School of Medicine, Philadelphia. Deceased.

Footnotes
Accepted for publication Oct 21, 1969.

Reprint requests to Department of Dermatology, Hospital of the University of Pennsylvania, Philadelphia 19104 (Dr. Shelley).

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