Answer:

melanin

Answer	Crossword Clue
MELANIN	Skin pigment
MELANIN	Albino's lack
MELANIN	Biological pigment

MELANIN	Freckle, essentially
MELANIN	Pygmy's pigment
MELANIN	Skin colorer
MELANIN	Freckle's makeup

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.