Test yourself for glyphosate. Hair testing measures of your longer-term glyphosate exposure, 2 – 3 months. This is ideal if your food and environment vary a lot over time. For example, if a person eats organic food at home and conventional food while traveling, the hair test result will provide an average for these exposures over a few months. Please note that hair that is bleached, dyed or exposed frequently to chlorinated pools may have diminished glyphosate levels.