Apparently something called “summer” is on the way (although you’d be forgiven for not believing the hype at the moment). This means we’re all probably about to be bombarded by well-meaning advice about staying safe in the sun – be it from our friends and family, TV infomercials featuring well-read experts, and random articles (like this one) on the internet.
But while lots of us try to stay safe in the sun,
you might be surprised to find that some things that you thought were protecting you aren’t actually doing a very good job. We asked Clare O’Connor, Boots UK Sun Care Expert, to explain a few of the unexpected dangers.
1. Sun lotion
Which is all very well and good, but some of those terms probably need explaining.
SPF is “Sun Protection Factor” and simply indicates how good the product is at preventing sunburn. The bigger the number, the greater the protection and the less likely you are to burn using it.
UVA and UVB stand for “Ultraviolet A” and “Ultraviolet B”. Ultraviolet (UV) light is the part of sunlight that reacts with living tissues and causes damage. UVB is the region that causes most of the sunburn reaction in skin whilst UVA was originally considered to be the “safe” ultraviolet but is now know to be responsible for cumulative and long term damage.
The UVA star rating system measures the level of UVA protection in a product in relation to UVB. A five-star UVA product offers approximately equal protection against UVA rays as well as UVB rays.
2. Clouds
“Some UVB light can be filtered out by cloud cover, whereas UVA light can still come through at the same rate,” explains O’Connor.
“However, light cloud cover does little to reduce the effects of UV on the skin and we should still protect our skin in the same way as on a clear sunny day.”
3. Water
“UV light still penetrates through water, especially near to the surface. Water also reflects a considerable amount of UV light increasing the effect on the skin,” warns O’Connor.
The best thing to do is invest in a good water-resistant sun cream, and make sure you keep it topped up.
4. Windows
“Window glass will filter out UVB light but UVA light still gets through unless the window has a special coating,” explains O’Connor. “Most house or office windows are not laminated and therefore UVA light will penetrate. Tinted windows may have a minimal protective effect but UVA light will still get through.
“If you are spending time sitting by a window in your office all day it is still important to protect your skin with a minimum SPF 15 and five-star UVA rated product – even if you aren’t intending to spend any time outside.”
5. Car windows
However the same cannot be said for your side windows and sun roof. Expect damaging rays to flood through these as they would with any other glass.
6. Wet clothes
“When cotton is dry it provides an SPF of around 10 but when wet this decreases by more than half to an SPF of 3,” explains O’Connor.
“Regardless of what material the clothing is made from remember that the protection is reduced dramatically when wet, it is important to still use sun protection rather than rely on clothing alone for protection.”
7. Certain types of fabric
“This protection is then further reduced the more transparent a fabric gets. Therefore silk and cotton provide greater protection when dry than wool.”
8. The shade
“A large amount of UV radiation reflects from surfaces, such as sand, concrete, water and grass, and can hit your skin, even if you’re sitting under a tree or sun umbrella. This is known as solar reflectance, or albedo,” explains O’Connor.
9. Sun umbrellas
According to O’Connor: “(The albedo effect) is particularly strong in places like Greece where the white buildings and surfaces means you are more exposed to UV reflection. The UV is no less strong when reflected so ensure you keep yourself protected even if you’re just strolling around!”
10. Darker skin
However, that doesn’t mean sun-lovers with darker skin should neglect their skin-protection products. “Other forms of skin cancer are associated with excessive sun exposure across all skin types,” warns O’Connor.
“All skin will still be affected by premature ageing. Brown spots and uneven pigmentation are often UV-induced ageing effects in darker skins, whereas wrinkles may be more prevalent in a lighter skin tone.”