Why Does the Sun Darken Our Skin While It Lightens Our Hair Color?

In the summer months, the sun The way her hair shines brightly, the smell of the sea, the birds chirping… Isn’t it beautiful?

In these months Our skin begins to tan under the influence of the sun. But we cannot say the same for our hair. So what could be the reason for this?

The key to both the tanning and hair lightening processes is the way the ultraviolet radiation (UVR) emitted by the sun affects the melanin pigment in hair and skin.

Hair cells are dead; just lipids, water, pigments and consists of structural proteins.

When the sun’s rays hit these dead cells, Lightens hair color by breaking down melanin pigment causes.

on the other hand The skin is alive and has an important defense mechanism. Helen Norton, professor of anthropology at the University of Cincinnati, made a scientific statement on this subject:

“Melanin acts like a natural sunscreen on the skin. One of the things he can do is is to absorb UVR when it hits the skin. “So it prevents it from penetrating deep into our epidermis and dermis, which can prevent some of the damage that UV can do.”

This response, called facultative melanogenesis, occurs in three stages.

First, when you go out in the sun pigments darken instantly and your surprised body registers the change in UV radiation.

After a few minutes, the messenger in your cells is stimulated and telling your genes to produce more melanin It causes rapid melanin production.

Later With increased pigment production There is a persistent darkening response that takes several hours to kick in.

So all of these work together to get you a tan, but When the reactions don’t work quickly, you could get a sunburn.

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