People can spend as much as they want on skincare, but a natural element can cause skin to age 'faster' if they do not protect themselves from it, an NHS GP claims. Dr Amir Khan discussed skincare and health on a recent episode of his No Appointments Necessary podcast, highlighting the 'biggest ageing enemy' he says people encounter daily.
The Sun: The Biggest Ageing Enemy
The ITV regular, known to daytime viewers of Lorraine and Good Morning Britain, encouraged people to use SPF every day, adding that he does the same. He suggests this will help stop skin from appearing older than its actual age due to sun damage.
He said: 'The biggest ageing thing we have in this world is the sun. The skin changes that make us look older are more likely due to sun exposure than they are actually due to age.'
How the Sun Damages Skin
Collagen is the protein that holds our bodily structures together, providing skin with its suppleness. Without it, Dr Khan explains that 'we start to sag and wrinkle.' The sun degrades collagen through a process called photoageing, chiefly caused by ultraviolet (UV) radiation. This not only harms existing collagen structures but also stops new ones from developing in their place.
Applying sunscreen helps protect against collagen depletion by reducing the damage the sun's rays can inflict at a DNA-altering level. But as the NHS highlights, sunscreen alone is not enough. People should always combine it with other sun safety practices, including seeking shade during peak UV hours.
How Often Should You Use SPF?
UV rays penetrate clouds and glass, meaning SPF protection is necessary throughout the entire year — not solely during the summer. As a general rule, anyone looking to safeguard their skin should apply a minimum of SPF 30 on a daily basis — though the precise amount will depend on your lifestyle.
For instance, a single morning application is typically sufficient for those who predominantly work indoors and only venture outside briefly for errands. However, individuals spending extended periods outdoors, whether for work or leisure, should reapply SPF every two hours to maintain adequate protection.
How to Apply Sunscreen
According to the NHS: 'Most people do not apply enough sunscreen.' Experts claim that adults 'should aim to apply around six to eight teaspoons of sunscreen' for their entire body. The NHS says: 'If sunscreen is applied too thinly, the amount of protection it gives is reduced. If you plan to be out in the sun long enough to risk burning, sunscreen needs to be applied twice - 30 minutes before going out and just before going out.'
Most Brits also make the mistake of missing exposed skin on the face, neck and ears, and head (if you have thinning or no hair). The NHS also stresses the rule of reapplying sunscreen every two hours because 'the sun can dry it off your skin.'
