What effect can UV rays have on hair?

The effect of UV rays on hair primarily includes color fading and increased dryness. Ultraviolet (UV) radiation from the sun can break down the chemical bonds in the hair's pigment, leading to the loss of color. This is especially noticeable in dyed hair, which may fade more rapidly when exposed to sunlight.

Additionally, UV rays can damage the outer layer of the hair cuticle, making it more porous and susceptible to moisture loss. This results in increased dryness, which can lead to brittleness and frizz. Therefore, regular exposure to UV light can significantly impact the overall health and appearance of hair, causing it to look dull and lifeless over time.

Understanding this impact is essential for hair care practices, as it highlights the importance of using protective products like UV filters in hair care routines or wearing hats when spending prolonged periods outdoors.