Alteration of the zinc anc copper concentration of hair.
A washing and analytical procedure for the analysis of the zinc and copper concentrations of hair samples is described. The treatment of samples with nonionic detergent + EDTA wash removed the most adsorbed zinc anc copper from hair and was the washing procedure chosen for routine analyses. Beauty treatments had a variable effect on hair zinc and copper concentrations; the most drastic procedures were cold waving and bleaching; conditioner, hair spray, tint, and a permanent dye had a less drastic or no effect. Increasing distance of the hair from the scalp was associated with a regular increase in copper concentration and also increases in zinc concentration for most subjects.
D000328:Adult; D001505:Beauty Culture; D004396:Coloring Agents; D003300:Copper / Q000032:analysis*; D003358:Cosmetics; D005260:Female; D006197:Hair / Q000032:analysis* / Q000033:anatomy & histology; D006801:Humans; D008297:Male; D008722:Methods; D012621:Seasons; D013048:Specimen Handling; D015032:Zinc / Q000032:analysis*
D004396:Coloring Agents; D003358:Cosmetics; D003300:Copper; D015032:Zinc