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Can Gray Hair Be Reversed?

Head to https://linode.com/scishow to get a $100 60-day credit on a new Linode account. Linode offers simple, affordable, and accessible Linux cloud solutions and services. Researchers have identified the processes that cause gray hair and have done experiments to reverse it. And believe it or not, we've had some of these options for decades. Hosted by: Savannah Geary (they/they) ---------- Support SciShow by becoming a patron on Patreon:   / scishow   ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tomás Lagos González, Jacob, Christoph Schwanke, Sam Lutfi, Bryan Cloer ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok:   / scishow   Twitter:   / scishow   Instagram:   / thescishowfacebook:     / scishow   #SciShow #science #education #learning #complexly ---------- Sources: https://www.nature.com/articles/s4158... https://faseb.onlinelibrary.wiley.com... https://ijdvl.com/puvasol-therapy-in-... https://www.jidonline.org/article/S00... https://www.cambridge.org/core/servic... https://onlinelibrary.wiley.com/doi/1... Image Sources: https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/ph... https://www.gettyimages.com/detail/vi... https://commons.wikimedia.org/wiki/Fi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://commons.wikimedia.org/wiki/Fi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/ph... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/ph... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi... https://www.gettyimages.com/detail/vi...