128 citations
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January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
5 citations
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January 2021 in “Journal of Saudi Chemical Society” Watercress oil may promote hair growth by activating specific receptors.
30 citations
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April 2011 in “Rapid communications in mass spectrometry/RCM. Rapid communications in mass spectrometry” Analyzing hair with this method can help understand and monitor scalp conditions and treatment effects.
April 2018 in “Journal of Investigative Dermatology” Sensitive scalp has higher pH, more redness, abnormal sebum, and altered bacterial makeup.
43 citations
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July 2005 in “Journal of Chromatography B” A new method accurately measures hair lipids, revealing individual differences.