Cosmetology · Haircoloring Principles

Demi- and semi-permanent colors generally differ from permanent color in that they:

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Correct answer

Are less permanent and fade gradually, with little or no lift of natural pigment

A Are less permanent and fade gradually, with little or no lift of natural pigment
B Cut the hair
C Cannot add tone
D Last longer than permanent

Why this is the answer

Demi-permanent and semi-permanent colors are generally less long-lasting than permanent color: they deposit color and fade gradually over a number of shampoos, and they typically do little or no lifting (lightening) of the natural pigment, since they use little or no developer (or a low-strength one). Permanent color, by contrast, can lift and lasts until it grows out. Knowing the broad differences among temporary, semi-, demi-, and permanent color (longevity and lift) is standard color theory, with specifics learned through training.

Source: Hair Care — Color Longevity Types

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About this topic: Haircoloring Principles

Haircoloring principles cover the colour wheel and levels, the categories of haircolour (temporary to permanent), developers and volumes, lightening, patch tests and formulation. The chemistry of oxidative colour is tested every time. This is one of 8 Hair Care questions on haircoloring principles, each with a full explanation on a single study page.

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Demi- and semi-permanent colors generally differ from permanent color in that they:

Why this is the answer

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About this topic: Haircoloring Principles

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