Is Melanin Your Body's Natural Sun-Screen

Melanin is what many dark-skinned people want fewer, while many white-skinned people want more.

Melanin is the pigment that gives our hair, eyes and skin color. Occurs not only in skin but also in many internal organs.

In fact, the more melanin plays many roles in the body color.

In many countries of Asia, there are plenty of cosmetic products with the promise of clearer skin and in countries with a majority of the population of white skin, cosmetics, giving it a darker color of the skin, are often very popular.

In this article, however, focuses on how to melanin supports the tanning process.

In short, tan (if done correctly) increases the production of melanin to protect cells overexposure to ultraviolet (UV).

This is how the tanning process that stimulates the production of melanin and the more obscure:

1. The UVB-component of sunlight (or lamps in a tanning bed) stimulates melanocytes, the cells of the outer layer of skin (epidermis) to produce more melanin.

2. The UVA component of sunlight (or lamps in a tanning bed) oxidizes the melanin new and existing darker color.

3. The dark melanin is now a barrier around the cells in the body and uses the color black or dark brown to spread more UVB rays that can be harmful.

Brown melanin molecules also move to the very surface of the skin to form an additional barrier to the exposure of ultraviolet light. And voila, you have created your body's natural sun protection and has a beautiful tan and healthy.

Now that you know the essential role of melanin in the tanning process, let's take a look at what might interfere with the natural form of the creation of melanin and protection.

The most common interference is caused by chemicals in cosmetics sunscreen. The purpose of such chemicals is to block UV rays coming into your body. They do this either by forming a diffusive or reflective barrier on your skin. It's a good idea to wear sunscreen, chemicals, if you suddenly find yourself having to spend long periods in strong sunlight.

The problem with most sunscreen lotions, however, that often block the UVB-only component of sunlight. So through the UVA, which is still its existing melanin oxidizes and give you a tan surface. UVA rays also add to the photo-aging of the skin. However, because the UVB rays are blocked, your body does not create any additional melanin and natural UV-protection will not increase.

Another reason not to use sunscreen because blocking UVB, his body refused all its potential for creating vitamin D.

In general, I do not think it's a good idea to destroy, the unnecessary use of cosmetic sun protection products, the delicate balance between UVB, UVA and melanin that has developed in the human body for millions of years.

Another cause of interference is to try to increase the body's natural production of melanin.

The two most common chemicals that are psoralen and tyrosine. Both are supposed to increase the creation of melanin, but do so in very different ways.

Psoralen increases the photosensitivity of the skin, making it more receptive to UV rays. Even if this may be useful in treatment under medical supervision of skin conditions like psoriasis, is not recommended as a method to build more melanin to tan darker.

Tyrosine, however, is the major amino acid that melanosomes in melanocytes used to create melanin. The verdict is still out on whether topical application of tyrosine (which is a common ingredient in tanning lotions) actually increases the production of melanin in the skin. In any case, tyrosine appears to be the best option if you want to help the work of melanosomes to make melanin.

Lately, there has been other substances that claim to add storage of melanin in the body.




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