Sun exposure can cause brown spots on the skin which are known as freckles. Melanocytes are pigment producing cells in our skin and these melanin pigments feed keratinocytes. Keratinocytes are skin cells that shape and outline the external barrier of the skin.
This barrier defends us from the weather and avoids our skin from being sun damaged. But when we are over-exposed to the strong UV rays, the melanocytes are then damaged and hence, we produce freckles. Freckles are thus irregular group of flat, melanin pigmentation in our skin.
Freckles are mostly visible and obvious on fair-skinned people and they can be found on anyone. Also known as ephelis, freckles can run in the family and is linked to the MC1R (Melanocortin-1 Receptor) gene group.
Any spots should be examined thoroughly before they are eradicated as spots could be pre-cancerous lesions. By removing these spots, it would be hard to analyze the lesions, especially if it is partly removed, and so it is important to have the dermatologist look at your freckles.
One simple method to diminish skin freckles is to apply fading and remover creams which can lighten the spots. However, it is hard to target the freckles specifically as the creams can lighten the adjacent area to the freckles as well. And as a result, the creams will fade not only the freckles but the surrounding skin too.
One of the most common clinical treatments for freckles removal is Laser Treatment. Lasers are very efficient in combating freckles because melanin pigments reside on the skin surface and are efficient in absorb laser radiation.