How do you say “melanin” in Vietnamese?

Vietnamese words for “melanin”

• sắc tố đenListennoun
  Hanoi [sak̚˧˦ to˧˦ ʔɗɛn˧˧] · Saigon [ʂak̚˦˥ tow˦˥ ʔɗɛŋ˧˧]sắc rising tố rising đen level

  melanin

  for “melanin” meaning: Any of a group of naturally occurring dark pigments, especially the pigment found in skin, hair, fur, and feathers.

• hắc tốListennoun
  Hanoi [hak̚˧˦ to˧˦] · Saigon [hak̚˦˥ tow˦˥]hắc rising tố rising

  melanin