
How do sunscreens work?
The skin consists of two main layers: the epidermis on the outside and the inner dermis. If we talk about sunbathing or Tanning, the epidermis is where the action occurs. The epidermis is also made layers. The deepest layer of the epidermis, called the basal layer (basal layer) is affected during tanning. The stratum corneum (horny layer) is the outermost layer of the epidermis – the layer that is most affected by Sunless Tanning Products, tanning. There are different types of products Sunless Tanning, today. People were able to pour on a tan since 1960, when Coppertone ® came out with the first Sunless Tanning Product – QT ® or Quick Tanning Lotion. If you are old enough to remember, then you are probably thinking of the incredibly orange lotion produced. Since then, there have been several advances made in front of sunless tanning. These days, you can find Tanning Pills, sunless or self-tanning and tanners. You can gently slide or spray on a ray of light or dark bronze tan. Many of these products for about 45 minutes to a hour begin to take effect, and once you factor in drying time, you may be looking less than three hours to reach the sun's fire. According to the American Academy of Dermatology, the most effective products are the self-Tanning Lotions or sun that contain dihydroxyacetone (DHA) and active ingredient. DHA is a sugar clear that interacts with dead cells of the stratum corneum of the epidermis. As the sugar interacts with dead skin cells, a color change. This change usually lasts five to seven days after the initial request. Every day, millions of dead skin cells loose or worn surface of the skin. In fact, every 35 to 45 days, you have an entirely new epidermis. That's why tanning lotions and sunless tanning will gradually disappear – as dead cells are worn, so is your tan. For this reason, most of these products claim to re-apply the sunless tanning or Sunless Tanner all three days to maintain your "tan". Although gels, lotions or sprays that contain DHA are said to be the most reliable and useful, dozens of other products on the market. Tanning accelerators – lotions or pills that usually contain the amino acid tyrosine – claim that stimulate and increase melanin formation, thereby accelerating the tanning process. At this point, there is no scientific evidence to support these allegations. Another self-tanning product is a tanning pill that contains canthaxanthin, which is most commonly used as a color additive in certain foods. Although the FDA approved the use of canthaxanthin in food that is not approved for use as a tanning agent. When used as a color additive, only very small amounts of canthaxanthin are necessary. As an agent for tanning However, much larger quantities are used. After canthaxanthin is consumed, his body is deposited, even on your skin, making an orange-brown. These Types Of Tanning pills have been linked various side effects, including hepatitis and canthaxanthin retinopathy, a condition of yellow deposits formed in the retina of the eye. Another popular form of sunless tanning is the bronzer. These powders and moisturizers, once applied, create a tan that can easily be removed with soap and water. More makeup, dyeing of these products or stain your skin only until they are washed. It is important to remember that most of these products, except contains an added sunscreen, will not protect you against the sun's UVA and UVB rays. Even products that contain sunscreen will not be a big help, because they lose their effectiveness within hours after application. So if you're thinking outside the head to show off your new glow, be sure to apply some protection Sun