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Exposure to the sun can exacerbate the effects of ageing as the collagen network that holds our skin in place becomes damaged, resulting in premature wrinkling and other skin problems. Adequate sun protection is needed, not just during the hot summer months, but also during winter.
The difference between a sunblock and a sunscreen is that a sunscreen contains ingredients that work by absorbing UV radiation, while a sunblock works by reflecting the sun's rays off the skin. The two key ingredients to look for in a sunblock are zinc oxide and titanium oxide.
The chances of developing sunburn are greatest between 10am and 4pm, when the sun's rays are strongest. For this, you need to use products with SPF – which stands for 'sun protection factor' and includes a number to help determine how long you can stay out in the sun before getting sunburnt.
If you use a sunscreen with an SPF of 5, then you can stay outside in the sunlight five times longer before getting a sunburn compared to the time required to get a sunburn without using sunscreen.
An ideal sunscreen should be water-resistant, have an SPF rating between SPF 30 and 60, and should provide broad spectrum coverage, blocking out both UVA and UVB rays and doing a better job of protecting skin from sun exposure.
Additionally, being well-covered, using a wide brimmed hat, umbrella and/or sunglasses all help protect you from sun damage.
• Sunscreen has ingredients that absorb UV radiation.
• Sunblock works by reflecting sun’s rays off skin.
• It is advisable to use sunscreen with SPF 30-60.
Source: Special to Classifieds