In today's world of skincare awareness, the significance of sunscreen cannot be overstated. With influencers and social media platforms spreading knowledge about the harmful effects of UV radiation, the importance of sunscreen application has gained widespread recognition. However, despite this growing awareness, there are still individuals who neglect this crucial step in their skincare routine. If you're among them, it's time to understand why sunscreen application – and reapplication – every two hours is essential for maintaining healthy, radiant skin.
Importance of Applying and Reapplying Sunscreen Every 2 Hours
We spoke to our expert Dr Kritika Bansal, Senior Resident, Department of Dermatology, Venerology and Leprosy - Sharda Hospital to shed some light on the importance of applying sunscreen and why we need to re-apply it every two hours. Here is what she shared with us.
Protection Against Sunburn: One of the most immediate consequences of UV exposure without protection is sunburn. Sunburn not only causes discomfort but also damages the skin, leading to redness, peeling, and pain. By applying sunscreen regularly, you create a barrier that shields your skin from the harmful effects of UV rays, significantly reducing the risk of sunburn.
1. Prevention of Premature Ageing
UV radiation accelerates the ageing process of the skin, resulting in wrinkles, fine lines, and age spots. Continuous exposure to sunlight without adequate protection can cause significant damage to the skin's collagen and elastin fibres, leading to premature ageing. By incorporating sunscreen into your daily skincare routine, you can effectively mitigate these effects and maintain a youthful complexion for longer.
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2. Reduced Risk of Skin Cancer
Perhaps the most concerning consequence of unprotected sun exposure is the increased risk of skin cancer. Melanoma, basal cell carcinoma, and squamous cell carcinoma are all forms of skin cancer that can develop due to prolonged exposure to UV radiation. Regular use of sunscreen helps minimise this risk by providing a barrier against harmful UV rays, thereby protecting the skin's integrity and reducing the likelihood of developing skin cancer.
3. Prevention of Sun Damage
UV rays can penetrate deep into the skin, causing damage to DNA and leading to the formation of dark spots and pigmentation. Sunscreen acts as a shield, blocking these harmful rays and preventing them from causing damage at a cellular level. By applying sunscreen consistently, you not only protect your skin's overall health but also maintain a more even tone and complexion.
4. Support for the Immune System
Prolonged sun exposure and sunburn can weaken the immune system, making it more challenging for the body to fend off infections and illnesses. By using sunscreen regularly, you minimise the risk of sunburn and help maintain the integrity of your skin's protective barrier. This, in turn, supports your immune system's ability to function optimally, keeping you healthy and resilient.
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5. Management of Sun-Related Disorders
For individuals with sun-related disorders such as actinic keratoses, sun-induced allergies, or photodermatitis, sunscreen is not just a preventive measure but also a crucial aspect of management. Regular application of sunscreen can help alleviate symptoms and prevent flare-ups, allowing individuals with these conditions to enjoy outdoor activities with greater comfort and confidence.
"Given the myriad benefits that sunscreen offers, it's evident that its incorporation into daily skincare routines is non-negotiable. However, it's not just about applying sunscreen once and forgetting about it. To ensure optimal protection, it's essential to reapply sunscreen every two hours, especially when spending extended periods outdoors or engaging in activities that may cause sweating or water exposure," Dr Bansal said.
"Reapplication is necessary because sunscreen gradually wears off over time, diminishing its effectiveness in providing protection against UV radiation. By reapplying every two hours, you replenish the sunscreen's barrier and ensure continuous coverage throughout the day, minimising the risk of sun damage and its associated consequences," she added.
A Final Word
"Sunscreen is not just a skincare product; it's a vital tool for protecting your skin against the harmful effects of UV radiation. By making sunscreen application – and reapplication – a non-negotiable part of your daily routine, you can safeguard your skin's health, maintain its youthful appearance, and enjoy the beauty of the outdoors without compromise. So, if you're still not using sunscreen consistently, it's time to make the change and prioritise the long-term health and vitality of your skin," Dr Bansal concluded.