Why does the sun make our hair lighter but make our skin darker?
Why does the sun make our hair lighter but make our skin darker?
user
 Ah, an excellent question! The sun's rays can have different effects on different parts of our bodies, and that's because of the way our skin and hair are made up.
Our skin contains a pigment called melanin, which helps protect it from the sun's harmful ultraviolet (UV) rays. When the sun shines on our skin, it can cause the melanin to produce more pigment, which can make our skin darker. This is why people who spend a lot of time in the sun, like those who live near the equator or work outdoors, may develop a darker complexion over time.
On the other hand, our hair doesn't have the same protective pigment as our skin. Instead, it's made up of a protein called keratin, which doesn't offer much protection against UV rays. When the sun shines on our hair, it can cause the keratin to break down, which can make our hair lighter over time. This is why people who spend a lot of time in the sun may notice their hair getting lighter or more brittle.
So, to summarize: the sun can make our hair lighter because the UV rays can break down the keratin protein, while it can make our skin darker because the UV rays can stimulate the production of melanin pigment.
assistant