110.3

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Gray hair

A mixture of non pigmented and pigmented hair

Eumelanin

Brown/ black natural pigment

50% gray

Even mixture of pigmented and non pigmented hair

75% gray

Hair will appear lighter overall

Medium

Has average response to color products

Primary factor

Heredity

Small population of eumelanin

Light hair

Melanin

Melanin production slows down and hair strand loses its color results in white hair

25% gray

More pigmented hair and less non- pigmented hair

Melanin

Pigment that gives hair it's natural color and is determed through generic coding

Predominant amount of pheomelanin

Red hair

Pheomelanin

Red/yellow natural pigment

Coarse

Resistant to lightening; may appear to process slightly lighter then intended

Porosity

The ability of hair to absorb moisture liquids or chemicals

Texture

The degree of coarseness or fineness in the hair fiber

Dense concentration of eumelanin

Very dark hair

Fine

When lightening or removing pigment a mild lightener recommended


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