Eumelanin is a dark pigment that predominates in black and brunette hair. A small amount of brown eumelanin in the absence of other pigments apparently causes blond hair. Pheomelanin is a lighter pigment found in red hair, and is concentrated in the redder areas of the skin such as the lips.Click to see full answer. People also ask, what produces eumelanin and pheomelanin?The melanin pigments are produced in a specialized group of cells known as melanocytes. There are three basic types of melanin: eumelanin, pheomelanin, and neuromelanin. Melanin is an effective absorbent of light; the pigment is able to dissipate over 99.9% of absorbed UV radiation.Furthermore, how is Pheomelanin produced? Pheomelanin (red/yellow) pigment is produced by the addition of cysteine to dopaquinone (1). Both pheomelanin and eumelanin (brown/black) pigments protect skin from UV damage. It has been suggested, although not proven, that the recessive subtle gray (sut) mouse pigmentary mutation reduces yellow pigmentation (4). Keeping this in view, what does Pheomelanin mean? Pheomelanin. From Biology-Online Dictionary | Biology-Online Dictionary. Definition. A type of melanin pigment that is made up of benzothiazine units and is responsible for yellow and pink to red hues or pigmentations such as in hair, lips, etc.Why do we have different skin tones?People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. The genetic mechanism behind human skin color is mainly regulated by the enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.