New Jersey Barber and Hairstyling Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success!

Question: 1 / 400

Which type of hair color lasts the longest?

Demi-permanent hair color

Temporary hair color

Semi-permanent hair color

Permanent hair color

Permanent hair color is known for its longevity because it includes a chemical process that allows the color to penetrate the hair shaft and bond with the hair’s natural pigment. This type of color typically contains ammonia or a similar agent that opens the hair cuticle, enabling the color to infuse deeply into the cortex of the hair and change its color permanently. As a result, permanent hair color does not wash out and remains until the hair grows out, is cut, or is re-colored.

In contrast, demi-permanent hair color usually lasts about 24 to 28 shampoos and is designed to fade over time, making it a more temporary option. Temporary and semi-permanent hair colors are even shorter in duration; they are primarily surface-level dyes that may wash out after a few shampoos or fade significantly within a few weeks. Therefore, while other color types may provide versatility or less commitment, none offer the lasting results that permanent hair color provides.

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