What is the effect of UV rays on hair?

Ultraviolet (UV) rays from the sun can have detrimental effects on hair, primarily causing fading and dryness. When hair is exposed to UV radiation, the protein structures that give hair its strength and color can become damaged. This damage can result in the loss of natural pigments, leading to a noticeable fading of hair color, especially in color-treated hair. Furthermore, UV exposure can strip moisture from the hair, making it dry and brittle. Dry hair is often more prone to damage and can feel rough to the touch.

In contrast, other options do not accurately reflect the impact of UV rays on hair. While breakage and split ends may occur as a result of overall hair damage, the most direct and immediate effect of UV exposure is the fading and dryness. Additionally, UV rays do not make hair more manageable or enhance its natural shine; instead, the damage can lead to the opposite effect, making hair harder to style and appear dull.