Spf 50 Research Paper

Many people think that is it possible to achieve a “healthy tan,” but this thought has been proven wrong. Overexpose to UV-A and UV-B rays from the sun lead to premature aging of the skin, as well as the possible formation of skin cancer, know as melanoma. An appearance of a tan is actually a stage of burning and damage to the skin. Although a tan may be desirable to many, the fact remains that more people need to be educated on the dangers of the sun’s harmful rays, and the possible health complications of overexposure.

Geographical isolation in the past has caused a variation in skin color; natural selection selected specific skin pigments depending on environmental factors. Early humans who moved to Europe were introduced to a place that had less sunlight than their former place of residence. Overtime, light skin (skin with lower levels of melanin) was selected for since there were not as many UV rays that the skin needed protection from. But, what was wrong with having dark skin in Europe? How is extra melanin a disadvantage in this case? One thing to remember is that even though the sun can provide UV rays, sunlight is also a great source of natural vitamin D (Jablonski; Kirchweger). Vitamin D helps bones absorb calcium and is particularly essential for developing embryos in pregnant women. The adaptation for lighter skin was important because the skin needed to absorb as much sunlight as it could in order to receive optimal amounts of vitamin D (Kirchweger). However, too much vitamin D can be fatal. So as high amounts of melanin protected the skin from excessive UV rays in Africa, they also protected it from excessive vitamin D (Kirchweger).

The purpose of this experiment was to test which type of sunscreen worked better, spray or lotion. The experiment was conducted by cutting a UV paper into squares and labeling each one with each of the six sunscreen. A small amount of each sunscreen was applied to a square and was taken outside for three minutes to be exposed to the sun. The UV squares were taken back inside to be soaked in water for one minute each. The squares were left to dry for twenty-four hours. Three trials were conducted for each sunscreen. After the twenty-four hours of drying time and for the results to fully come in, immediately it was noticed that the lotions made the UV paper much lighter than the sprays. For all three trials, sunscreen number two, made the UV paper the whitest, meaning it protected the UV paper from sun exposure more.

Jablonski and Chaplin describe melanin as nature's sunscreen. They also define melanin as “a large organic molecule that serves the dual purpose of physically and chemically filtering the harmful effects of UV radiation; it absorbs LTV rays, causing them to lose energy, and it neutralizes harmful chemicals called free radicals that form in the skin after damage by UV radiation.” Anthropologists and biologists had rationally believed that people living in tropical areas had higher concentrations of melanin in the skin to serve as protection against skin cancer. James E. Cleaver of the University of California in San Francisco refuted this idea. He stated that most skin cancers appeared later in life so in conclusion the amount of melanin that a dark skinned person produced had no relation to skin protection. Cleaver showed that diseases like xeroderma pigmentosum, a disorder in which the ability to repair damage caused by UV light is deficient, and melanomas, a serious type of skin cancer that develops in the cells that produce melanin, can be rare and even fatal. The authors ended up questioning the role that melanin played in human

A common challenge that most consumers will face is ineffective sun screens. This has caused many people to begin to experience an increase in cases of skin cancer. The problem is that research has confirmed these challenges. Yet, no one has utilized the latest technology to create a product that will protect consumers and is environmentally friendly. This proposal is focusing on how this kind of merchandise can be marketed to customers to address this underlying need. The expected outcome is that these strategies will help to redefine how firms are delivering this product to cliental.

The basic component in tanning is ultraviolet light. Ultraviolet light, whether produced by a tanning unit or by the sun, contains two components; UVA and UVB. These are the two types of ultraviolet radiation that are known to negatively effect the skin. UVA has a longer wavelength that causes photoaging and can produce some melanomas. UVB has a shorter wavelength that also causes photoaging and has been implicated in skin cancers. Photoaging is the premature aging or deep wrinkling of skin. Indoor tanning units utilize both forms of light waves to tan a person with a minimized risk of sunburn. Tanning outdoors does not give you this option because the sun omits every type of UV rays, so a person is more likely to burn. A person’s skin epidermis consists of two layers: The germinative layer and the horny layer. Another name for the germinative layer is the “living layer.” And another name for the horny layer is the “dead” layer. When exposed to ultraviolet light, melanocytes in the germinative layer produce melanin that is absorbed by surrounding cells. Melanin is a dark pigment found in the pigment-bearing cells of the skin, and melanocytes are epidermal cells capable of synthesizing melanin. This creates a protective barrier from ultraviolet light reaching deeper into the layers of the skin. The pale pink melanin granules are stored in the core of keratin cells. UVA darkens the melanin,

Have you ever felt the “false sense of security that [you] may not feel under direct sunlight” from a tanning bed (Jeffrey)? Your body relaxes, you feel serene, and you get a golden glow. Some teens strive for this feeling...and the tan. Tanning is the skin's response to injury, according to Arielle Kauvar, M. D. The exposure of UV rays over time can cause skin cancer. Skin cancer is the growth of abnormal growth of skin cells that forms in the tissue of the skin (Skin Cancer). Melanoma, the most dangerous type of skin cancer, can come from UV rays. From 1998- 2008, the number of cases of Melanoma has increased by about

Two times of melanin are produced within the body, one is called eumelanin and it is responsible for the golden brown color we normally associate with tanning. Another pigment is called pheomelanin and it produces a red color. Redheads and blondes produce more pheomelanin and less eumelanin, which is why they don't tan as well. Sunlight and ultraviolet rays affect the pituitary gland, a gland at the base of the brain that secretes hormones, which then produces melanocyte-stimulating hormone. This hormone flows through the bloodstream to the melanocytes, which makes them able to produce more melanin. (The Science of Tanning)

Surprisingly, the sun-kissed tanned skin is what most younger whiter complexions are eagerly trying to desire; despite the risk of artificial tanning that could cause to a person’s health, but the rate of people using a tanning salon is still rising. In America, there are 30 million white females from ages 16 to 29 years old that are fascinated in indoor tanning (Becirevic, Amel et al, 2017). As the rate of tanning bed users rises the melanoma incident has also increased. Melanoma risk is associated with artificial tanning for a very long period of exposure to the ultraviolet radiation which skin problem can occur later in life. People used artificial tanning as it gives very quick result for a brief period and the fewest number of sessions

“Indoor tanning under the age of 18 increases your risk of skin cancer by 75%”(Division of Cancer Prevention Ceanter). Over 10,000 people are expected to die this year from UV related causes. However, many people will disregard these facts and continue on with their harmful habits. There are many effects of artificial tanning and prolonged exposure to the sun. Many people have no idea about the risks of prolonged exposure to the sun, how dangerous artificial tanning actually is, or how radiation is not the only harmful trait of indoor tanning.

It does provide the obvious risks that come from UV tanning, but provides ways to prevent them while still being able to tan. The article also has a section on sunless tanning and how it could be the future of the UV protection, which a think is a key component of the source since many people don’t even consider it when wanting a natural, golden tan because of preusumptions that it makes the skin unnatural or

Did you know that over 5.4 million people in the U.S. each year have a case of nonmelanoma skin cancer every year and there are new cases of skin cancer. People that use tanning beds are at a higher risk of skin cancer. Also for the people that use SPF 15 or higher have a twenty four percent chance of having skin aging. People that are beginners at tanning don’t know how long to expose their body to the sun and don’t know what happens to them when they sunburn from overexposure or using tanning beds. When using a tanning bed there is a higher risk of skin cancer than tanning out in the sun, but when tanning in the sun people don’t know what happens to their skin when it sunburns like premature skin aging, sun spots, and wrinkles.

SPF stands for Sun Protection Factor. The numbers that represent the SPF stands for how much UV Protection it provides from the light. Not how long you will be able to be outside in the UV light for before reapplying (RSS, Which SPF is Right for you).

A major function of melanin is to act as a defensive barrier of the skin against radiation damage. Ultraviolet light between the wavelengths 280-320nm (UV-B) causes sunburn and damages the skin on nonpigmented peoples. Exposure to this degree of light causes their skin to become dry, leathery, and wrinkled in appearance similar to that associated with aging. This can be seen in Whites living in Australia and South Africa, where ultraviolet light intensity is high because of the relative latitude or closeness to the equator.

Every hour at least one American will die of skin cancer caused by exposure to the sun. These statistics are alarming and most people are unaware that the sunshine that we all love so much is in fact a threat to our health and good looks. It is up to us to educate ourselves and our children on the harmful effects of sun exposure on the human body like premature aging, physical damage to the body, and cancerous diseases.