Captions provided by CCTubes – Captioning the Internet! Your urine is mostly water, but hidden in there are trace amounts of some very useful stuff!
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Sources:
https://medlineplus.gov/ency/article/003425.htm
http://www.tandfonline.com/doi/full/10.1080/10643389.2014.1000761
http://www.lib.niu.edu/2001/iht810139.html
https://www.nature.com/articles/154765a0
http://blogs.discovermagazine.com/bodyhorrors/2014/12/31/penicillin-urine/#.WlUHPaOZNE5
https://arstechnica.com/science/2016/04/drugs-we-pee-out-are-returning-to-us-in-our-salad-bowls-to-get-re-peed/
https://mcb.berkeley.edu/courses/mcb135e/fsh-lh.html
http://knowledgenuts.com/2015/05/04/doctors-once-recycled-penicillin-out-of-urine/
https://qz.com/710516/the-strange-story-of-a-fertility-drug-made-with-the-popes-blessing-and-gallons-of-nun-urine/
https://www.urmc.rochester.edu/ob-gyn/gynecology/menopause-blog/february-2016/the-history-of-estrogen.aspx
https://www.sciencedirect.com/science/article/pii/S2352304214000063
https://link.springer.com/chapter/10.1007%2F978-1-4614-8066-2_2
https://www.hindawi.com/journals/sci/2017/4378947/#B16
https://www.hindawi.com/journals/sci/2016/2452985/abs/
http://jaha.ahajournals.org/content/4/9/e002159.short
https://pdfs.semanticscholar.org/6a4b/96c0d561bb4927561dfb04cbd634842fde1a.pdf
https://gizmodo.com/why-you-definitely-shouldnt-drink-your-own-pee-1648474064
Images
https://commons.wikimedia.org/wiki/File:Penicillin_Past,_Present_and_Future-_the_Development_and_Production_of_Penicillin,_England,_1943_D16959.jpg
https://commons.wikimedia.org/wiki/File:Human_embryonic_stem_cells.png
https://commons.wikimedia.org/wiki/File:Gray1123.png