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      research Spontaneous Super-Contraction of Animal Hair

      1 citations , July 1935 in “Nature”
      This study found super-contraction in the guard hairs of fur-bearing animals, likely due to oxidation in living animals, primarily affecting white and red foxes without prior heat or chemical treatment.

      research Mechanism of hair straightening

      10 citations , January 1994
      This study discusses that permanent hair straightening can be achieved at neutral or acidic pH conditions, with varying effects on cystine and lanthionine levels, by inducing supercontraction of the hair fiber.