Extensive bleaching, perming and dyeing may damage the protein matrix of hair allowing a portion of the drug within the hair to be extracted, thus lowering the final quantitative result with certain drugs. Normal hair washing helps to remove external contamination. Commonly used hair products (e.g. shampoos, conditioners, sprays, mousses or gels) have no significant effect on hair results.
"Good Afternoon Customer Rep., It was very nice to speak with you on the phone, your as nice on the phone as in your email. I really appreciate the time that you took to help advise me. Sincerely," (Wanda P.)
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DNA & Genetics
DNA & Paternity
