Understanding What Your Skin Is Telling You

April 3, 2009 by admin · Leave a Comment 

The skin serves numerous functions – detoxifying, protecting, regulating – but the primary protective or barrier function is the most obvious. The top layer of skin cells has the most important function in maintaining the effectiveness of the barrier. Here the individual cells overlie each other and are tightly packed, preventing bacteria from entering and maintaining the water-holding properties of the skin.Fatty substances (lipids) are secreted by the cells during the course of their journey from the base layer of the skin to the top. These lipid molecules join up and form a tough connecting network, in effect acting as the mortar between the bricks of a wall.

The cell wall barriers are simply layers of fats that surround the watery contents. Therefore, the communication mechanisms must operate through these fatty cell walls. In fact, many of the substances that are involved in this communication process are various fats since it is easiest for fats to move within the fatty layers that comprise the cell walls. Despite its bad reputation, proper fats and cellular fats are of major importance in our body’s biochemistry and physiology.

Damage to the skin barrier can result from a combination of genetic predisposion and exposure to sensitizing chemicals and other substances. That is why avoiding irritants is as important as using products that help. In skin care, the most common irritants are usually perfumes and preservatives.

Fatty substances control the majority of our body’s physiology through receptors that activate many important genes. Likewise, our skin barrier is comprised of a supporting structure of collagen, a protein that contains fats that serve a critical function. These fats prevent the excess loss of water through our skin and prevent the cells of our body from becoming dehydrated and dying.

A major sign of a defective skin is the dryness that results from excessive water loss. This water can not be applied topically but must be ingested. To prevent the excessive water loss and the resulting dry skin, we must repair the skin barrier. We find that the skin composition in individuals with dry skin is due to an improper mixture of the skin fats. This is commonly due to a deficiency in our diet of the correct fats, those contained in natural olive oils, avocados, and healthy nuts, etc. On a nutritional basis, we can provide these necessary fats through the skin sometimes through topical treatments containing natural butters or oils, like Shea, olive and cocoa butter. The epidermis is not a usual means to acquire nutrition but it can absorb enough fatty substances to correct the fat imbalances that are the cause of the defect in the skin’s barrier function and thus correct the dry, itchy skin or sensitive skin problem. Try to be aware of chemical preservatives in any topical products you do use, and remeber natural organic products are great!

Several Ingredients to Avoid

April 3, 2009 by admin · Leave a Comment 

Ingredients to Avoid

Due to certain preservative requirements, many skin care products are unfortunately loaded with ingredients that actually harm your skin over time. Following are a few prominent ingredients widely used in skincare products to day and are to be avoided if you prefer you skincare to be more natural or organic.

• Mineral Oil. This oil has been used in literally hundreds of products. Mineral oil may also go by the alternative names liquid paraffin, paraffin wax and petrolatum on the product label. Mineral oil is used pervasively in skin care products as a moisturizing agent due to its low cost. Mineral oil, once applied, is meant to ‘trap’ moisture in the skin, but once applied, actually prevents the skin from “breathing.” As such, it clogs pores, interferes with your skin’s natural ability to eliminate toxins, and can lead to acne flare ups. Also, it is irritating to the skin and if used for any length of time, your skin can become dependent on it, causing chapping and dryness. Lastly, it can lead to premature aging of the skin.

• Dioxane: (a synthetic derivative of coconut). This substance is widely used in skincare products. It often contains high concentrations of 1,4-dioxane, which is readily absorbed through the skin. In the State of California, 1,4-dioxane has been reported as “known to cause cancer.”

• Fragrances: No one wants to smell bad, but if you want to be on the safe side, you are better off choosing an organic essential oil or diluted cologne, hydrosol or even a bodyspray. Your skin care products typically contain chemically engineered fragrances to mask the unpleasant “chemical odor” of the foundational product itself. Many of these masking fragrances are produced from ingredients that are known to be toxic or carcinogenic.

• Parabens: methyl, propyl, butyl, and ethyl paraben. Many skin care products (and moisturizing products) will use parabens as a preservative so their products have a long shelf life. The reason is purely economical. However, studies suggest that they may cause cancer and interfere with the body’s endocrine system, as well as causing allergic reactions and skin rashes.

• Alcohols: ethanol, ethyl alcohol, methanol, benzyl alcohol, isopropyl alcohol and SD alcohol. Not all alcohols have the same properties, but these, which are commonly found in skin care products, are very drying and irritating for the skin. Alcohols such as these strip away the skin’s natural acid mantle, making you more vulnerable to bacteria, moulds and viruses. Its important to note some alcohols are used beneficially in acne treatments.

What Does It Really Mean to be Organic

April 3, 2009 by admin · Leave a Comment 

It’s no secret that skin care is big business. Despite the recent economic downturn, 2008 profit earnings from the major cosmetic corporations and health care industries report increased earnings. So, in spite of housing foreclosures and corporate layoffs, looking good and feeling good is still a top priority for the average consumer. It makes sense, good health is always the top of the list when it comes to keeping the medical bills low and saving money. If you are proactive in your health – eating right, exercising and using whole, organic ingredients in your food and the products you buy, you will save hundreds if not thousands in health insurance and medical bills down the road.When you are choosing skin care, personal care and cosmetic products, part of spending you hard-earned dollars wisely means paying close attention to the labels of products your purchase. This is the only way to ensure you purchase truly natural and organic skin care products. The following are tips you can follow to keep your health at it’s best and your money in your bank.

There is a little-known “Rule Of Thirds” when it comes to ingredients lists. The top third of the ingredients label generally lists the ingredients that comprise around 90-98% of the product. Most of this is usually water. The middle third generally represents approximately 5-8% of the product. The bottom third represents around 1-3%.

Natural skin care is not always natural.

There are two definitions of the world natural. The cosmetic and health industry standards use them liberally. The dictionary definition: “Existing in or, formed by, nature.” The cosmetic industry definition: “Any ingredient derived from a natural substance.” Manufacturers commonly use the world ‘natural’ on labels to deceive consumers. For example, “Cocamide-DEA derived from coconut oil.”

Cocamide-DEA may well be from coconut oil, but a synthetic chemical called diethanolamine is used in the extraction process. It is known to cause cancer. An ingredient is not really natural if it has been processed in this way.

Organic doesn’t always mean what you think.

An organic certification on a product label is the only way to guarantee the integrity of a product. The definition of certified organic is as follows: “An independent third party guarantee of an organic claim.”
Always look for a logo that guarantees the product’s integrity. Certified organic products must contain a minimum of 95% organic ingredients excluding water and salt/minerals, with a small allowance for natural, non-organic ingredients that must comply with very stringent processing criteria.

In addition, there are two definitions of organic. The first, “Organic chemistry ” is concerned with substances that contain carbon. Carbon is present in all living things. Legally, the cosmetics industry is allowed to label any product that contains carbon as ‘organic’. So, even if it contains gasoline, it is considered organic.

Methylparaben is another misused term. It is derived from petrochemicals, which are derived from crude oil, which is derived from living matter. It is a widely used preservative in organic skin care products such as body creams, body wash and deodorants. Shocking as it seems, technically, methylparaben can legally be labeled as organic. It is worth noting here that a recent European study reported traces of methylparaben in human breast cancer tumors.

The second definition of organic is, “The sustainable system of agriculture that uses natural substances & methods to create healthy nutrient rich and fertile soils.” When you are reading labels for the health of yourself and your family, be aware of these common misnomers.
Be aware of the “water” label in the product?

According to research found via the world wide web, what can be meant when companies put ‘73% Organic’ on their labels, could be as deceptive as a manufacturer placing a few organic teabags in a vat of water and letting them infuse. Because the water constitutes 70+ percent of the overall product, the manufacturer is allowed to claim that the product is 73% organic at the top of the label. Obviously, if you removed the water, the actual organic content of those fancy herbal infusions would probably be less than 0.05% of the total product.

Be aware of inconsistent labeling standards.  In some countries, ingredients that are not allowed in certified organic foods ARE allowed in certified organic personal care and cosmetic products. This represents a lack of continuity or consistency in labeling standards. How can food and cosmetics products have the same certified organic logo when ingredients that are allowed personal care and cosmetics are not allowed in food? Remember , if you put it on your skin, it is going into your body.

Be careful of “miracle” ingredients, times don’t really change. What was true for your great-grandfather and the traveling salesman then is still true for you in the modern age. Vitamin C, vitamin E, coenzyme Q10, active copper and other ingredients may be touted as “miracle ingredients, ” because they do offer great health benefits when taken internally or as a supplement, with your physicians guidance, etc. But the plain truth is when you apply them topically (meaning to your skin directly) there is so little of the actual ingredient left, it can’t do much. There is no miracle ingredient for the skin or hair, just as there are no magic pills for curing illness and disease in ” four to six weeks.”

The quality of the skin is a function of feeding the body high quality nutrients over time and keeping the toxin levels of the body as low as possible.

When you use high quality, certified organic products, ALL the ingredients are active. They are ALL beneficial and they all feed the skin.

Five Lifestyle Choices to Improve your Skin

April 3, 2009 by admin · Leave a Comment 

Below are five basic steps in keeping skin healthy, along with the use of organic skin care products.1. Drink plenty of water. A huge percentage of the body is composed of water. Water intake will help you clean the body. Water also hydrates the body and helps prevent dry skin. Well-hydrated cells function well. Cells that function well can help maintain youth. The more active a person is, the more water he/she needs. Eight glasses of water a day is the recommended amount of water intake, however, as for athletes and energetic people, more is needed to replace the fluid they excrete through perspiration. There is no replacement to drinking plenty of water and this is not only a great organic skin care rule but a great habit to adopt.

2. Exercise. Aside from a boost in energy, moderate work outs promote blood circulation and increase oxygen in the blood stream. Both help in maintaining the youth of your skin.

3. Wash your face with mild cleansing products. Cleansing products with strong substances can harm cells. Ensure that you use clean water when washing the cleansing products off your skin. Don’t rub your skin vigorously with the towel – it irritates the skin. Wipe gently with soft cloth. Organic skin care products are milder than those with synthesized or processed ingredients and don’t need to be scrubbed off.

4. Use organic skin care products when possible. Products with natural ingredients will clean your skin just as well as those full of chemicals. The closer the ingredients are to their natural state, the less harmful for your skin. Most organic products work with the body’s natural process in fighting harmful elements and potential diseases as opposed to chemically forcing the skin to respond to treatment.

5. Moisturizers are recommended for all skin types. Even oily skin loses its natural moisture after using harsh cleansing products. If your skin is not properly moisturize, it will dry and age faster. Toners help in cleaning traces of dirt and cosmetics not easily removed with the use of cleansers. Try to use a product containing zinc or a natural sunblock agent to protect your face from the harmful UVB rays of the sun.  Organic lotion can unlock your skin’s natural glow.

Eat and maintain a balanced diet. Fruits and vegetables contain vitamins and minerals that help you maintain a healthy skin the natural way. Avoid processed and greasy foods. Familiarize yourself with healthy, organic food that you enjoy and will promote better health. Supplements will also provide assistance in keeping your whole body healthy. Keeping the entire body healthy is the primary key for healthy cells. This is the most important organic skin care tip. Skin can only look as good as the nutrients you feed your body. The skin is the primary conduit for the liver to process toxins.

Organic skin care gives you the greatest opportunity to have a healthy skin, without using harmful ingredients. The appearance of your skin indicates the state of your health. If you are suffering from acne or any other skin condition, try treating it from the inside out first. Give your body a chance to balance itself with healthy foods and supplements before you spend hundreds of dollars on topical treatments. Your skin is your body’s armor, protecting your from the elements. Help it do its job.

Baby Sun Care Guidelines from the AAP

April 3, 2009 by admin · Leave a Comment 

The best way to protect your baby is to keep your baby out of direct sunlight as much as possible, especially between 10 a.m. and 4 p.m., when the sun’s rays are strongest. Routinely dress him in a hat, lightweight pants, and a long-sleeved shirt for outings during the middle of the day. Tightly woven clothing protects better than loosely woven fabrics (to see how tight the weave is, hold the fabric up to a light – the less light that shines through, the better). Add UV-protective sunglasses if your baby will wear them. Use an umbrella, stroller canopy, or sun-protective tent to protect your baby while he’s outside.

Until August 1999, the American Academy of Pediatrics (AAP) recommended against using any type of sunscreen on babies younger than 6 months, because their skin’s ability to metabolize and excrete chemicals may not be fully developed. This recommendation has been revised somewhat.  You can use sunscreen on babies under 6 months if adequate clothing and shade aren’t available, but check with your pediatrician first.  If you use organic sunblock you can avoid chemical interaction altogether.  That doesn’t mean you should slather your baby in sunblock, though. Just apply a small amount of lotion to exposed areas.

For babies over 6 months, use a waterproof sunscreen designed for children. Choose a sunscreen labeled “broad spectrum,” which means it protects against both ultraviolet B (UVB) and ultraviolet A (UVA) rays. Zinc oxide and titanium dioxide sunscreens are good to use on particularly sensitive spots, such as the nose and lips.

The AAP and American Academy of Dermatology recommend an SPF of at least 15, but many experts recommend SPF 30 or higher for babies, and many baby sunscreen formulas have even higher SPFs. If possible, apply sunscreen 30 minutes before sun exposure and reapply it at least every two hours, especially if your baby has been playing in the water or has been sweating (even if the sunscreen is waterproof).

When trying a new sunscreen, do a patch test on your child’s back to make sure he doesn’t have a reaction to it. If he does develop a rash or redness at the test site, choose a hypoallergenic formula instead.

Sun Care Tips for Taking Your Baby in the Sun

April 3, 2009 by admin · Leave a Comment 

When you take your bay outside you should understand how to keep them safe from the sun. Their skin is so delicate that the sun and wind can burn them easily. If there is any tanning on your baby’s skin it means that there is some skin damage. The mildest of sunburns is very painful for the baby and studies have shown that skin cancer is related to sunburn in childhood. Here are some tips to protect the baby from the sun:• Dress your baby up in long-sleeved T-shirts and pants made of cotton. This will be cool and protect the skin from the sun.
• Do not let your baby out in the sun especially at noon, as the sun is the strongest at this time.
• Use a sunblock every time you take the baby out. The sun protection factor SPF should be at least 15. You should reapply if your going to be out in the sun for over a couple hours
• Use a wide rimmed hat when you take the baby out. Sunshades and umbrellas are a great tool also.
• If your baby does get sun burnt give him a cool bath and apply an aftersun lotion. It is always safer to consult your doctor first.
• Ensure that your baby is drinking a lot of fluids. Whether it is breast milk or water especially if it is very hot so that he doesn’t get dehydrated.
• Sometimes babies can have a heat stroke due to over exposure to the sun. The common symptoms are vomiting, listlessness, headaches and drowsiness. Give your baby plenty of fluids and consult your doctor immediately.
• Remember to protect your babies from the wind too. Harsh wind can damage their delicate skin as well.

Treating your Baby for Sunburn

April 3, 2009 by admin · Leave a Comment 

Understanding your baby’s skin and the sun can help you prevent a sunburn. First its important to note the best treatment is prevention. A sunburn is the result of overexposure to the sun’s ultraviolet (UV) radiation. A baby’s skin is very thin and delicate, so despite your best precautions, a sunburn can happen – and it may take only ten to 15 minutes of exposure to cause one. Your baby can even get burned on a cloudy or cool day because it’s not the visible light or the heat from the sun that burns but the invisible UV radiation. Sunburns can be painful and can also cause more serious problems such as dehydration and fever.If you suspect your baby might have been overexposed to the sun, you may not notice a sunburn immediately. The redness and pain of a mild first-degree burn can take several hours to appear. A more severe second-degree sunburn can cause red, tender, swollen, or blistered skin that’s hot to the touch. It’s extremely unlikely that a baby would get a third-degree burn – the worst kind – from sun exposure. If you see blisters contact your pediatrician.

If the sunburn is mild, soak a cloth diaper or clean washcloth in cool water, wring it out, and gently place it on the sunburned area for ten to 15 minutes a few times a day (make sure your child doesn’t get chilled). You could also bathe your baby in a mixture of cool water and baking soda to help cool the skin and reduce redness. Follow either treatment with a gentle application of water-based moisturizer. Also, give your baby plenty of fluids – breast milk, formula, or, for an older baby, water – to prevent dehydration.

For more sever cases consult a doctor. The doctor may prescribe topical steroid ointments or creams, an infant non-aspirin pain reliever, or draining and dressing of blisters.

Why Natural and Organic Sunblock Is Better

April 3, 2009 by admin · Leave a Comment 

There are toxins all around us in the world today. People are becoming more and more conscious of where they go, what they eat, and the things they are exposed to. The rage over organic and natural products isn’t really a rage. People are simply learning that using synthetic chemicals will probably result in our bodies absorbing elements we weren’t supposed to absorb. Learning how our bodies work and why we should avoid certain synthetic ingredients will help promote overall well-being and a more healthy society.Skin is our first barrier of defense from the outside world not to mention the largest organ of our body. It is made up of several layers (dermis, epidermis, and subcutaneous tissue). These layers work together by utilizing different types of cells, which create a semi-waterproof layer of tissues highly concentrated with blood vessels. This simple factor allows us to release and absorb substances to regulate our bodies based on the environment we are exposed to.

This is the key to understanding why using organic and natural products is so significant. The types of ingredients skin care products are made up of will dictate what becomes absorbed quickly, what won’t be absorbed and what may clog the absorption process. Most essential oils have a relatively small molecular mass so they are absorbed quickly. However many synthetic ingredients also have a small molecular mass meaning they will be absorbed into the skin and blood stream right away also. As for some of the heavier oils like almond, olive, and coconut oil which make up the majority of crèmes and lotions, they are higher in molecular mass resulting in a slower absorption rate which it ultimately leaves your skin feeling soft and lubricated several hours after the application. Some ingredients like Zinc are not absorbed at all and will sit on top of the skin and act as a physical barrier.

It is important to understand how our skin works and why using natural products will help us in the long run. The more natural and organic a lotion or crème is the more our bodies will be able to absorb and break down the ingredients for overall use in a natural way. Ultimately, preventing synthetic substances from entering our blood stream will help to prevent unwanted chemical reactions commonly associated with toxins.

Sun care if your skiing or in high altitude

April 3, 2009 by admin · Leave a Comment 

Higher altitude means increased levels of harmful UV exposure compared to sea level areas. UV exposure increases 8-10 percent with every 1,000 feet above sea level. At an altitude of 9-10,000 feet, UV may be 45-50 percent more intense than at sea level. In addition, snow reflects about 80 percent of the UV light from the sun, meaning that you are often hit by the same rays twice. This only contributes to the problem, further increasing the risk for skin cancer.The combination of higher altitude and ultraviolet (UV) rays reflected by the snow puts skiers and snowboarders at an increased risk of sun damage and ultimately, skin cancer. More than 90 percent of all skin cancers are caused by sun exposure. It’s easy to associate winter with frostbite and windburn, but most people are unaware that UV rays can be even more damaging on the slopes than on the beach,it’s important to take proper precautions while on the slopes.

Both snow and strong wind can wear away natural sunscreen and reduce its effectiveness, so you have to take extra precautions. To protect your skin from the bitter cold, heavy winds and winter sun, follow these important sun protection tips:

• Use a broad-spectrum sunscreen with an SPF of 15 or higher whenever you spend time outdoors. Apply 30 minutes before hitting the slopes.Be aware that the sun’s reflection off the snow is strong even on cloudy days.
• Apply sunscreen liberally and evenly to all exposed skin – most skiers and snowboarders do not use enough sunscreen and therefore do not get the maximum protection.
• Use a more moisturizing sunscreen. Winter conditions can be particularly harsh on the skin.
• Be sure to cover often-missed spots: lips, ears, around eyes, neck, underside of chin, scalp and hands.
• Read the ingredients to learn which active ingredients are protecting you. Try to use Zinc or Titanium and organic inactive ingredients. Organic sunblock can prevent complications some chemical sunscreens may cause.
• Reapply at least every two hours, and more often after sweating or exposure to wind and snow.
• Carry a travel-sized sunscreen and lip balm with an SPF of 15 on the slopes. Reapply on the chairlift, especially after a long, snow-blown run. Lips are very sensitive.
• Wear items like ski masks, which will cover most of the skin, leaving very little exposed to the wind and sun.
• UV-blocking sunglasses or goggles that offer 100% UV protection and have wraparound or large frames protect your eyelids and the sensitive skin around your eyes, common sites for skin cancer and sun-induced aging. The sun’s rays and glare can impair your vision, so it’s important to wear sunglasses or goggles to clearly see the terrain. Plus, it will increase your enjoyment and performance while skiing.
• Keep track of the time you spend in full sunlight. If possible, ski early in the morning and later on in the day, before 10AM and after 4PM. This helps avoid long lines and decreases the amount of time spent outdoors in the most intense hours of sunlight.
• If you are on the slopes for most of the day, take a few breaks indoors to reapply sunscreen.
• Drink plenty of water to avoid dehydration from the sun.

Enjoy the winter season, but be sure to take care of your skin to avoid the damage the cold season can cause.

What exactly is UVA and UVB

April 3, 2009 by admin · Leave a Comment 

For a six billion-year-old star, the sun is certainly in the news a lot lately, mainly because it is still a source of uncertainty and confusion to many of us.The center of this confusion is the sun’s ultraviolet A (long-wave) and ultraviolet B (shortwave) rays. Our understanding of exactly what kinds of damage each causes to the skin, and how best to protect ourselves, seems to shift every year as new research comes out. For example, it was once thought that only UVB was of concern, but we keep learning more and more about the damage caused by UVA. And new, improved forms of protection against UVA keep emerging. Keeping up with these new developments is a worthwhile challenge that can help all of us prevent sun damage.

What is Ultraviolet Radiation?

UV radiation is part of the electromagnetic (light) spectrum that reaches the earth from the sun. It has wavelengths shorter than visible light, making it invisible to the naked eye. These wavelengths are classified as UVA, UVB, or UVC, with UVA the longest of the three at 320-400 nanometers (nm, or billionths of a meter). UVA is further divided into two wave ranges, UVA I, which measures 340-400 nanometers (nm, or billionths of a meter), and UVA II which extends from 320-400 nanometers. UVB ranges from 290 to 320 nm. With even shorter rays, most UVC is absorbed by the ozone layer and does not reach the earth.

Both UVA and UVB, however, penetrate the atmosphere and play an important role in conditions such as premature skin aging, eye damage (including cataracts), and skin cancers. They also suppress the immune system, reducing your ability to fight off these and other maladies.

UV Radiation and Skin Cancer
By damaging the skin’s cellular DNA, excessive UV radiation produces genetic mutations that can lead to skin cancer. Both the U.S. Department of Health and Human Services and the World Health Organization have identified UV as a proven human carcinogen. UV radiation is considered the main cause of nonmelanoma skin cancers (NMSC), including basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). These cancers strike more than a million and more than 250,000 Americans, respectively, each year. Many experts believe that, especially for fair-skinned people, UV radiation also frequently plays a key role in melanoma, the deadliest form of skin cancer, which kills more than 8,000 Americans each year.

UVA
Most of us are exposed to large amounts of UVA throughout our lifetime. UVA rays account for up to 95 percent of the UV radiation reaching the Earth’s surface. Although they are less intense than UVB, UVA rays are 30 to 50 times more prevalent. They are present with relatively equal intensity during all daylight hours throughout the year, and can penetrate clouds and glass.

UVA, which penetrates the skin more deeply than UVB, has long been known to play a major part in skin aging and wrinkling (photoaging), but until recently scientists believed it did not cause significant damage in areas of the epidermis (outermost skin layer) where most skin cancers occur. Studies over the past two decades, however, show that UVA damages skin cells called keratinocytes in the basal layer of the epidermis, where most skin cancers occur. (Basal and squamous cells are types of keratinocytes.) UVA contributes to and may even initiate the development of skin cancers.

UVA is the dominant tanning ray, and we now know that tanning, whether outdoors or in a salon, causes cumulative damage over time. A tan results from injury to the skin’s DNA; the skin darkens in an imperfect attempt to prevent further DNA damage. These imperfections, or mutations, can lead to skin cancer.

Tanning booths primarily emit UVA. The high-pressure sunlamps used in tanning salons emit doses of UVA as much as 12 times that of the sun. Not surprisingly, people who use tanning salons are 2.5 times more likely to develop squamous cell carcinoma, and 1.5 times more likely to develop basal cell carcinoma. According to recent research, first exposure to tanning beds in youth increases melanoma risk by 75 percent.
UVB

UVB, the chief cause of skin reddening and sunburn, tends to damage the skin’s more superficial epidermal layers. It plays a key role in the development of skin cancer and a contributory role in tanning and photoaging. Its intensity varies by season, location, and time of day. The most significant amount of UVB hits the U.S. between 10 AM and 4 PM from April to October. However, UVB rays can burn and damage your skin year-round, especially at high altitudes and on reflective surfaces such as snow or ice, which bounce back up to 80 percent of the rays so that they hit the skin twice. UVB rays do not significantly penetrate glass.

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