Louisiana Cosmetology Board Practice Exam 2026 - Free Cosmetology Practice Questions and Study Guide

The natural color of hair can change over time due to a combination of environmental factors, aging, and chemical treatments. Exposure to sunlight and pollution can lead to the hair color fading or altering, as UV rays can break down the pigments in the hair. Additionally, as people age, the production of melanin, which gives hair its color, naturally decreases, resulting in graying. Chemical treatments, such as dyeing, perming, or relaxing, can also significantly affect hair color, either by altering the natural pigments or introducing new shades altogether.

The other options, while they may influence hair's texture or condition, do not primarily impact its natural color in the same comprehensive way. Washing frequency can affect the overall cleanliness and health of the hair, but it is not a direct cause of color change. Hair product brands might offer varying formulations that can enhance or dull color, but they are not the foundational reasons behind the natural color change. Lastly, the use of styling tools can change the appearance of hair but doesn’t have the same lasting effect on its inherent color. Thus, the factors encompassed in the correct answer provide a more complete understanding of what can influence hair color over time.