Public domain
Cosmetics tested at Department of Agriculture. Washington D.C., July 10. In hair dyes and hair tonics there is sometimes found lead acetate, this is absorbed slowly into the system where it accumulates and may result in chronic poisoning. D.H. McCarter, of the Department of Agriculture is shown dete
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Credit lineCosmetics tested at Department of Agriculture. Washington D.C., July 10. In hair dyes and hair tonics there is sometimes found lead acetate, this is absorbed slowly into the system where it accumulate. 1937-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.