Since the beginning of recorded history, people have been putting on lipstick, applying perfume, wearing fake nails, and just generally making themselves look nice for all sorts of reasons. Heck, there are even some animals in on it! 

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[Definition]

https://www.fda.gov/cosmetics/cosmetics-laws-regulations/it-cosmetic-drug-or-both-or-it-soap

[Trivia Question]

Carthamus tinctorius L

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8126054/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263051/

[Fact Off]

Vultures painting themselves red

https://www.newscientist.com/article/dn19076-zoologger-vultures-use-twigs-to-gather-wool-for-nests/

https://esajournals.onlinelibrary.wiley.com/doi/full/10.1002/ecy.1840

https://www.newscientist.com/article/2130980-vultures-smear-their-faces-in-red-mud-which-they-use-as-makeup/

https://www.audubon.org/news/these-birds-wear-makeup

WWII nylon-replacing liquid leg makeup

https://books.google.com/books?id=OygDAAAAMBAJ&pg=PA30&lpg=PA30

https://americanhistory.si.edu/collections/search/object/nmah_765873

https://www.sciencehistory.org/distillations/nylon-a-revolution-in-textiles

https://www.smithsonianmag.com/smithsonian-institution/how-nylon-stockings-changed-world-180955219/

http://www.cosmeticsandskin.com/ded/liquid-powder.php  

[Ask the Science Couch]

Dangerous cosmetics (lead, radium, atropine) 

https://books.google.com/books?id=A3C_DwAAQBAJ&pg=PT26#v=onepage&q&f=false

https://books.google.com/books?id=LpplCgAAQBAJ&pg=PT67&hl=en#v=onepage&q&f=false

https://www.theatlantic.com/health/archive/2013/03/how-we-realized-putting-radium-in-everything-was-not-the-answer/273780/

https://cosmeticsandskin.com/aba/glowing-complexion.php

https://www.fs.fed.us/wildflowers/ethnobotany/Mind_and_Spirit/belladonna.shtml

https://www.webmd.com/drugs/2/drug-8614-99/atropine-ophthalmic-eye/atropine-sulfate-ophthalmic/details

[Butt One More Thing]

Butt hair forensics

https://pubs.rsc.org/en/content/articlelanding/2020/AY/D0AY01068E

https://www.sciencedirect.com/book/9780128119082/coronary-artery-disease

https://archives.fbi.gov/archives/about-us/lab/forensic-science-communications/fsc/april2009/review/2009_04_review02.htm#racebodyid