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Monday, 23 March 2015

Decoding Sunscreen. Explaining Sunscreen jargons like SPF and which type of sunscreen suite which skin type dealing with body odour during summer

Sunscreen shopping made easier!

With the sun shining at its powerful best, a tube of sunscreen is a must for your skin. Sunscreen, your best friend and defence mechanism was a simpler product to buy 15 years ago. These days many of us stand in the sunscreen section of a local supermarket bewildered by the sheer volume of choices of sun protection; UVA or UVB, SPF 30 or SPF 60? and more. However, with constant climatic changes and advance technology, researchers have gone far ahead and created different products for different situations and conditions. So, now when you go sunscreen shopping you usually see jargons like SPF, UVA, UVB and much more written in block letters. So along with the confusion of which sunscreen brand is the best for your skin, these jargons make matters worse. But don’t worry as they might look scary little scientific short forms, but are easier to understand if you know what exactly they stand for and what benefits the sunscreen brand has.  

Sunscreen vs. Sunblock

The biggest myth is sunscreen and sunblock is the same. Sunblock shields your skin from the UVA and UVB rays, while sunscreen chemically absorbs them.  Though no concrete proof, sunblock is better than sunscreen since it blocks the rays and not absorbs them.

SPF


SPF or Sun Protection Factor along with the number next to it refers to the degree to which a sunscreen can protect the skin. It notifies the amount of UVB rays blocked by the lotion. The higher the number, the more sunburn protection the sunscreen can provide. But at the same time according to the popular belief, cream with higher SPF doesn’t mean that it last longer. Higher SPF just shields your skin better than the lower one. So contrary to what you might think, according to research SPF 15 filters out 93 per cent of UVB rays, while SPF 30 filters out 97 per cent.

UVA or UVB or Board spectrum

The ultraviolet radiations or UV from the sun are basically of two types UVA and UVB. UVA or Ultraviolet A is longer wavelength UV radiation that causes deeper penetration, causing damage to the inner layers of the skin. These damages don’t show up immediately but are harmful in the long run. While UVB or Ultraviolet B is a relatively shorter wavelength UV radiation that cause damage to the external layer of the skin like sunburn or rash. The normal sunscreens available in the market have the formulation to protect your skin from UVB rays, leaving your skin venerable towards UVA rays. So, while choosing a sunscreen look for labels which says UVA and UVB protection or board spectrum.

Water Resistance

This is another term that is usual misleading. Water resistant sunscreen is best for people who are on rigorous outdoor activities and sweat a lot, or entering the water. However, according to FDA water resistance means that whatever SPF sunscreen you use will only be effective for 40 minutes, while the very resistant variant has the capacity to protect you for 80 minutes in water and not more than that. So, while you plan for the pool parties keep time in check, reapply your sunscreen / sunblock again to ensure complete protection