TIL hair smells bad when burned because keratin needs large amounts of the sulfur-containing amino acid cysteine for polymer crosslinking, which give it it's rigid properties en.wikipedia.org Submitted by Fantastic-Berry-737 t3_11xn6tn on March 21, 2023 at 5:06 PM in todayilearned 19 comments 399
janner_10 t1_jd3yvwz wrote on March 21, 2023 at 5:47 PM FYI, if you ever have laser eye correction surgery, it smells the same for those few seconds the excimer laser is on. Permalink 9
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