Sunscreen
"Cancers caused by UV exposure may be prevented by avoiding exposure to sunlight or other UV sources, and wearing sun-protective clothes. The use of sunscreen had been recommended in the past, but there is an increasing body of evidence that sunscreen is not entirely safe.
Skin cancer is most closely associated with chronic inflammation of the skin. This includes:
1. Overexposure to UV-radiation can cause skin cancer either via the direct− or via the indirect DNA damage mechanism. UVA & UVB have both been implicated in causing DNA damage resulting in cancer. Sun exposure between 10AM and 4PM is most intense and therefore most harmful. Natural (sun) & artificial UV exposure (tanning salons) are associated with skin cancer. Since sunbeds cause mostly indirect DNA damage (free radicals) their use is associated with the deadliest form of skin cancer - the malignant melanom."
http://en.wikipedia.org/wiki/Skin_cancer
"Darkening of the skin is caused by an increased release of the pigment melanin into the skin's cells after exposure to ultraviolet radiation. Melanin is produced by cells called melanocytes and protects the body from absorbing an excess of solar radiation, which can be harmful.
UVB:
-triggers creation and secretion of new melanin into the skin
-is thought to cause the formation of moles and some types of skin cancer (but not melanoma)
-causes skin aging (but at a far slower rate than UVA.)
-produces Vitamin D in human skin
-is more likely to cause a sunburn than UVA as a result of overexposure
-reduced by virtually all sunscreens in accordance with their SPF
UVA:
-causes release of preexisting melanin from the melanocytes
-causes the melanin to combine with oxygen (oxidize), which creates the actual tan color in -the skin
-seems to cause cancer less than UVB, but causes melanoma, a far more dangerous type of skin cancer than other types
-is blocked less than UVB by many sunscreens but is blocked to some degree by clothing
-is present more uniformly throughout the day, and throughout the seasons than UVB
For those who choose to tan, some dermatologists recommend the following preventative measures:
http://en.wikipedia.org/wiki/Sun_tanning#Preventing_overexposure
http://en.wikipedia.org/wiki/Sun_tanning
"Sunscreens contain one or more [UV] filters of which there are three main types:
-Organic chemical compounds that absorbs ultraviolet light (such as oxybenzone)
-Inorganic particulates that reflects, scatters, and absorbs UV light (such as titanium dioxide, zinc oxide), or a combination of both.
-Organic particulates that mostly absorb light like organic chemical compounds, but contain multiple chromophores, may reflect and scatter a fraction of light like inorganic particulates, and behaves differently in formulations than organic chemical compounds.
The following are the FDA allowable active ingredients in sunscreens + Other ingredients approved within the EU and other parts of the world: http://en.wikipedia.org/wiki/Sunscreen#Active_ingredients
Some individuals can have mild to moderate allergic reactions to certain ingredients in sunscreen, particularly the chemical benzophenone, which is also known as phenyl ketone, diphenyl ketone, or benzoylbenzene. It is not clear how much of benzophenone is absorbed into the bloodstream, but trace amounts can be found in urinalysis after use.
Recently, there has been increased attention to the possibility of adverse health effects associated with the synthetic compounds in most sunscreens. Recent studies found that some sunscreens generate harmful compounds that might promote skin cancer.
The three commonly used ultraviolet (UV) filters -- octylmethoxycinnamate, benzophenone 3, and octocrylene -- eventually soak into the deeper layers of the skin after their application, leaving the top skin layers vulnerable to sun damage. UV rays absorbed by the skin can generate harmful compounds called reactive oxygen species (ROS), which can cause skin cancer and premature aging. The researchers found that once the filters in sunscreen soak into the lower layers of skin, the filters react with UV light to create more damaging ROS."
http://en.wikipedia.org/wiki/Sunscreen
"Sunscreen has been proven to protect against the two most common forms of skin cancer: squamous cell carcinoma (SCC) and basal cell carcinoma (BCC). However the most lethal form of skin cancer - malignant melanoma - has been shown by several epidemiological studies to be amplified by the use of sunscreen.
Direct DNA damage is responsible for sunburn, SCC and BCC. The direct DNA damage is indisputably reduced by sunscreen use. However the indirect DNA damage which is caused by free radicals and ROS can be amplified by the use of sunscreen, if it penetrates into the skin.
In August 2007, the United States Food and Drug Administration tentatively concluded that "the available evidence fails to show that sunscreen use alone prevents skin cancer."
http://en.wikipedia.org/wiki/Sunscreen_controversy
"A sunburn is a burn to living tissue such as skin produced by overexposure to ultraviolet (UV) radiation, commonly from the sun's rays.
The only cure for sunburn is slow healing, although skin creams can help."
http://en.wikipedia.org/wiki/Sunburn
"A lack of sunlight, on the other hand, is considered one of the primary causes of seasonal affective disorder (SAD), a serious form of the "winter blues".
There are two further beneficial effects of sunlight. First, it upregulates the manufacture of vitamin D in humans when sunlight is incident upon skin surfaces. Secondly, the use of sunlight in lieu of artificial light to illuminate building interiors avoids certain adverse health effects of over-illumination by electric lights as well as promoting energy conservation."
http://en.wikipedia.org/wiki/Sunlight
----------------
How To Find Natural Sun Protection: http://www.howtodothings.com/health-and-fitness/a4564-how-to-find-natural-sun-protection.html
Sun-protective herbs and nutrients to defy the sun - pdf: http://www.needs.com/Catalog/Personal2.pdf
Homemade Sunblock Recipe: http://www.mothering.com/discussions/showthread.php?t=686498
Sunblock Recipe: http://www.industryinet.com/~ruby/sunblock_recipe.html
Natural-Protection Cream Recipe: http://www.a1-natural-beauty.com/Sunscreen_Lotion.html
Homemade UVA and UVB Sunblock Recipe: http://www.simpleliving.net/news/archives_article.asp?id=257
Some producers of natural sun protection:
http://shop.weleda.com/
http://www.drhauschka.com/
http://www.lavera.com/sun_protection
http://www.lanisimpson.com/ecolani/products/
------------------------------
Norske nettbutikker som selger
Dr. Hauschka: http://kinsarvik.no/Vareliste.aspx?hkat=5&kat=6&grp=4
Weleda: http://kinsarvik.no/Vareliste.aspx?hkat=5&kat=1033&grp=10002
Lavera: http://www.justnature.no/show_details/92/9/%20Lavera%20Sunblock%20LSF%2040%20Neutral%20.htm
+ Helios, helsekost-forretninger og lignende.
Solkremer 2007: Testvinnerne fra Grønn Hverdag:
http://www.gronnhverdag.no/artikkel.php?id=3134
Skin cancer is most closely associated with chronic inflammation of the skin. This includes:
1. Overexposure to UV-radiation can cause skin cancer either via the direct− or via the indirect DNA damage mechanism. UVA & UVB have both been implicated in causing DNA damage resulting in cancer. Sun exposure between 10AM and 4PM is most intense and therefore most harmful. Natural (sun) & artificial UV exposure (tanning salons) are associated with skin cancer. Since sunbeds cause mostly indirect DNA damage (free radicals) their use is associated with the deadliest form of skin cancer - the malignant melanom."
http://en.wikipedia.org/wiki/Skin_cancer
"Darkening of the skin is caused by an increased release of the pigment melanin into the skin's cells after exposure to ultraviolet radiation. Melanin is produced by cells called melanocytes and protects the body from absorbing an excess of solar radiation, which can be harmful.
UVB:
-triggers creation and secretion of new melanin into the skin
-is thought to cause the formation of moles and some types of skin cancer (but not melanoma)
-causes skin aging (but at a far slower rate than UVA.)
-produces Vitamin D in human skin
-is more likely to cause a sunburn than UVA as a result of overexposure
-reduced by virtually all sunscreens in accordance with their SPF
UVA:
-causes release of preexisting melanin from the melanocytes
-causes the melanin to combine with oxygen (oxidize), which creates the actual tan color in -the skin
-seems to cause cancer less than UVB, but causes melanoma, a far more dangerous type of skin cancer than other types
-is blocked less than UVB by many sunscreens but is blocked to some degree by clothing
-is present more uniformly throughout the day, and throughout the seasons than UVB
For those who choose to tan, some dermatologists recommend the following preventative measures:
http://en.wikipedia.org/wiki/Sun_tanning#Preventing_overexposure
http://en.wikipedia.org/wiki/Sun_tanning
"Sunscreens contain one or more [UV] filters of which there are three main types:
-Organic chemical compounds that absorbs ultraviolet light (such as oxybenzone)
-Inorganic particulates that reflects, scatters, and absorbs UV light (such as titanium dioxide, zinc oxide), or a combination of both.
-Organic particulates that mostly absorb light like organic chemical compounds, but contain multiple chromophores, may reflect and scatter a fraction of light like inorganic particulates, and behaves differently in formulations than organic chemical compounds.
The following are the FDA allowable active ingredients in sunscreens + Other ingredients approved within the EU and other parts of the world: http://en.wikipedia.org/wiki/Sunscreen#Active_ingredients
Some individuals can have mild to moderate allergic reactions to certain ingredients in sunscreen, particularly the chemical benzophenone, which is also known as phenyl ketone, diphenyl ketone, or benzoylbenzene. It is not clear how much of benzophenone is absorbed into the bloodstream, but trace amounts can be found in urinalysis after use.
Recently, there has been increased attention to the possibility of adverse health effects associated with the synthetic compounds in most sunscreens. Recent studies found that some sunscreens generate harmful compounds that might promote skin cancer.
The three commonly used ultraviolet (UV) filters -- octylmethoxycinnamate, benzophenone 3, and octocrylene -- eventually soak into the deeper layers of the skin after their application, leaving the top skin layers vulnerable to sun damage. UV rays absorbed by the skin can generate harmful compounds called reactive oxygen species (ROS), which can cause skin cancer and premature aging. The researchers found that once the filters in sunscreen soak into the lower layers of skin, the filters react with UV light to create more damaging ROS."
http://en.wikipedia.org/wiki/Sunscreen
"Sunscreen has been proven to protect against the two most common forms of skin cancer: squamous cell carcinoma (SCC) and basal cell carcinoma (BCC). However the most lethal form of skin cancer - malignant melanoma - has been shown by several epidemiological studies to be amplified by the use of sunscreen.
Direct DNA damage is responsible for sunburn, SCC and BCC. The direct DNA damage is indisputably reduced by sunscreen use. However the indirect DNA damage which is caused by free radicals and ROS can be amplified by the use of sunscreen, if it penetrates into the skin.
In August 2007, the United States Food and Drug Administration tentatively concluded that "the available evidence fails to show that sunscreen use alone prevents skin cancer."
http://en.wikipedia.org/wiki/Sunscreen_controversy
"A sunburn is a burn to living tissue such as skin produced by overexposure to ultraviolet (UV) radiation, commonly from the sun's rays.
The only cure for sunburn is slow healing, although skin creams can help."
http://en.wikipedia.org/wiki/Sunburn
"A lack of sunlight, on the other hand, is considered one of the primary causes of seasonal affective disorder (SAD), a serious form of the "winter blues".
There are two further beneficial effects of sunlight. First, it upregulates the manufacture of vitamin D in humans when sunlight is incident upon skin surfaces. Secondly, the use of sunlight in lieu of artificial light to illuminate building interiors avoids certain adverse health effects of over-illumination by electric lights as well as promoting energy conservation."
http://en.wikipedia.org/wiki/Sunlight
----------------
How To Find Natural Sun Protection: http://www.howtodothings.com/health-and-fitness/a4564-how-to-find-natural-sun-protection.html
Sun-protective herbs and nutrients to defy the sun - pdf: http://www.needs.com/Catalog/Personal2.pdf
Homemade Sunblock Recipe: http://www.mothering.com/discussions/showthread.php?t=686498
Sunblock Recipe: http://www.industryinet.com/~ruby/sunblock_recipe.html
Natural-Protection Cream Recipe: http://www.a1-natural-beauty.com/Sunscreen_Lotion.html
Homemade UVA and UVB Sunblock Recipe: http://www.simpleliving.net/news/archives_article.asp?id=257
Some producers of natural sun protection:
http://shop.weleda.com/
http://www.drhauschka.com/
http://www.lavera.com/sun_protection
http://www.lanisimpson.com/ecolani/products/
------------------------------
Norske nettbutikker som selger
Dr. Hauschka: http://kinsarvik.no/Vareliste.aspx?hkat=5&kat=6&grp=4
Weleda: http://kinsarvik.no/Vareliste.aspx?hkat=5&kat=1033&grp=10002
Lavera: http://www.justnature.no/show_details/92/9/%20Lavera%20Sunblock%20LSF%2040%20Neutral%20.htm
+ Helios, helsekost-forretninger og lignende.
Solkremer 2007: Testvinnerne fra Grønn Hverdag:
http://www.gronnhverdag.no/artikkel.php?id=3134