Hair highlighting process

Scalp injuries that may occur during the hair highlighting process fall into two broad categories (1) thermal injuries from direct contact with heated materials (such as aluminum foil) and (2) chemical scalp injuries from the chemicals used in the process [344, 354], In a review of 8 such cases, Chan and Maibach [344] found five basic etiologies (Table 4.23) ... 

Lund JJ, Unwala R, Xia L, Gottlieb V. Chemical sctilp bums secondary to the hair highlighting process cUnical and histopathological features. Pediatr Dermatol. 2010 21 74-8. 

The model simulations were in close agreement with the observed results from the distribution and metabolism studies. Physiological processes that were highlighted by the results and the discrepancies that did occur include the probable active transport into the brain (versus passive diffusion) of a methyl-mercury-cysteine complex, the bidirectional transport of methylmercury between the gut lumen and gut tissue as a more important determinant of methylmercury fecal excretion than biliary secretion, the importance for the determination of methylmercury half-life in rats of the recycling of mercury from ingested hair, and the need for better estimates of the rate constants for the demethylation of methylmercury in order to adapt the model to other species. 

---