DescriptionThe objective of this research is to seek information on the efficacy of hair mineral analysis for assessing zinc status by determining the concentrations of zinc in hair from two anatomical locations, scalp and pubis, and from two keratinized tissues, hair and nail. This was accomplished using hair and nail samples from several individuals and analyzing those samples using atomic absorption spectroscopy. The analysis of the zinc concentration in scalp hair compared to the zinc in pubic hair yielded a p-value of 0.0471, a Pearson’s correlation coefficient of 0.301, a linear regression r2 value of 0.0904 using GraphPad, and a t value of 2.01. The analysis of the zinc concentration in scalp hair compared to the zinc concentration in finger nail yielded a p-value of 0.766 using GraphPad, a Pearson’s correlation coefficient of 0.108, a linear regression r2 value of 0.0117, and a t value of 0.307. The statistical analysis does not support a linear or non-linear correlation between the level of zinc in human scalp hair and human finger nail and does not support the existence of a linear correlation but indicates a possible non-linear relationship zinc concentrations in scalp hair and pubic hair. The existence of this non-linear relationship could indicate the presence of a regulated metabolic process for the deposition of zinc in these two keratinized tissues.