No-poo: why do we shampoo our hair?

<p>Do you ever wonder while you’re shampooing and conditioning – is this really necessary?</p><p>The no-poo movement encourages people to ditch their products and turn to homemade concoctions, or nothing at all.</p><p>Norman and Tegan rinse out the evidence for and against hair care, and how we got here in the first place.</p><p>References:</p><ul><li><a href="https://archive.org/details/cleanhistoryofpe00smit/page/234/mode/2up?q=shampoo">Clean: A History of Personal Hygiene and Purity</a></li><li><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4458934/">Shampoo and Conditioners: What a Dermatologist Should Know?</a></li><li><a href="https://www.mcgill.ca/oss/article/general-science/no-poo-craze">The "No-poo" Craze: What do Gwyneth Paltrow, Kim Kardashian, Adele and Howie Mandel have in common? They don’t "poo" - McGill University</a></li><li><a href="http://pmc.ncbi.nlm.nih.gov/articles/PMC3002407/">Essentials of Hair Care often Neglected: Hair Cleansing</a></li><li><a href="https:...