New Mexico Cosmetology Practice Exam 2025 – All-in-One Guide to Mastering Your Certification!

Question: 1 / 400

How long is the typical shelf life of unopened hair color?

One year

Two years

Three years

The shelf life of unopened hair color is typically around three years. This time frame is important because over time, the chemicals within the hair color can break down or degrade, leading to a decrease in efficacy and performance when applied to hair. The ingredients in hair dye, especially those containing ammonia and peroxide, can lose their potency, which may result in uneven color results or diminished coverage of gray hair.

While some manufacturers may provide specific guidelines that could suggest variations, three years is a generally accepted standard in the industry for ensuring that the product remains effective and safe to use. It’s crucial for cosmetologists to be aware of this timeline to guarantee that they are using high-quality products that provide the desired results for their clients.

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Five years

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