The Best Hair Analysis 2023. Chemical hair analysis may be considered for retrospective purposes when blood and urine are no longer expected to contain a particular contaminant, typically three months or less. As your hair grows, some drugs will “stick” to the strands.
Think of it as a blueprint to your body over the. You can’t wash them out. Hair mineral analysis is a popular method for understanding your hair's mineral composition and its impact on hair growth.
