THE TRUTH ABOUT SPF: Why sunscreen is a 365- Day Essential
Keshvi Sood | Aug 25, 2025, 15:00 IST
Most of you think that sunscreen is a summer must have or let’s say only an outdoor essential. Think again! Sunscreen is one of the most overlooked skincare steps as people think that their skin is not exposed if they step out for a quick grocery run, if they’re sitting by their office window or even while endlessly scrolling on their phones. But that is a lie! Ultraviolet Radiations (UV Rays) do not take a vacation, whether it’s a sunny day in Delhi or a foggy winter in Shimla, your skin is constantly exposed. In fact, the World Health Organization (WHO) mentions that even snow can reflect up to 80% of ultraviolet radiation meaning winter exposure can be just as risky as summer. Let’s dig deeper and unveil the truth about SPF.
SUNSCREEN: MYTH vs REALITY
Busting Sunscreen Myths
Dermatologists have agreed upon the fact that 90% of the visible skin aging is caused by the sun, not by the time. Still, people neglect this proven and tested fact and rely on their false beliefs of using sunscreen only on sunny days. But that’s far from the truth. UV rays can easily penetrate clouds, glass windows and even your skin during cold winters. Studies have shown that all the skin types are vulnerable to sun damage, premature aging and even skin cancers.
Let me bust the biggest sunscreen myths that you probably didn’t know.
Myth 1: Use sunscreen only during summers or while going outdoors.
Reality: UV radiation affects our skin all year round regardless of the weather conditions. To support this statement, The Skin Cancer Foundation has advised that daily protection is required irrespective of the weather outdoors.
Myth 2: Dark skin does not need sun block.
Reality: All skin types must use sun block; it's a must each day. Having melanin in our skin does guard some, but UV rays harm everyone, no matter your skin type.
Myth 3: Indoors means that you are fully protected from any sun damage.
Reality: It makes no difference if you are outdoor or indoor or even just lounging on your sofas all day long, UV rays can easily pass through your windows. This statement can be backed up by the PubMed Central research as well. These UV rays, while passing through the windows, slowly and gradually reach your skin and leave long term impacts of aging and pigmentation.
Myth 4: High SPF = Full day protection.
Reality: SPF shows how strong the sun block is, not how long it can work. SPF 30 or 60 won't last from sunup to sundown. It fades with time and sweats. So, put on more sunscreen every two to three hours to stay safe.
WHY SPF MATTERS?
Why SPF is a Daily Essential
Most crucial question, yet the answer is unclear till date. Dermatologist Dr. Melanie Palm says, “Premature aging of the skin is caused by exposure to light which is around us at all times making sun damage a year-rounded concern.”
Let me shed some insight to provide some clarity. SPF does matter because the sun does not clock out. Whether you notice it or not, everyday our skin is exposed to UV rays.
Ultraviolet rays (UV) are classified into:
Ultraviolet A (UVA): UVA rays go deep into your skin and make it age fast and change its color, thus called the quiet agers.
Ultraviolet B (UVB): UVB rays tend to turn the skin red, sore and can even lead to sunburns.
Together, UVA and UVB can even lead to skin cancer. So, consistent application is the only way to keep your skin safe from any long-term damage. All should know that to care for your skin each day is not just for looks; it is the right choice for life.
DOING IT THE RIGHT WAY:
The Right Way
The decision of choosing the right sunscreen could be quite confusing, but it is as important as applying it. So, to make the correct choice all you have to do is focus on the basics i.e. go for a broad-spectrum SPF, at least 30 or higher whether gel, cream or spray formula, the same is advised by The American Academy of Dermatology. Higher SPF isn’t always more effective, what mainly matters is applying the sunscreen enough and then reapplying regularly. That is the Golden Rule because sunscreen fades away with sweat, time and touch. During application, always follow the ‘two-finger rule’ for the right amount on your face and neck. Be sure to put sunscreen on your ears, lips, and hands too. Sunscreen keeps you safe only if you use it well, everyday in the right way. The only key is ‘consistency’ just like brushing your teeth and bathing is part of your daily routine, so should the sunscreen be because the more consistent you are, the better protection you will get.
Your Everyday Skin Armour
Sunscreen is not a seasonal extra or just a summer habit. It’s the everyday armour your skin needs, 365 days a year to protect it from visible as well as invisible damage. Sun damage does not wait for summer, neither should your protection. Remember the truth about sunscreen- if you own skin, you need SPF as your skin’s best friend comes in a bottled labelled SPF.
Discover expert advice and the latest updates in Skin Care, Hair Care, Wellness, Dermatology, and more at Stay Young guide to lasting beauty and holistic health!
Frequently Asked Questions (FAQs)
- Do I need sunscreen if I stay indoors all day?
Yes, because UV rays can pass through windows and still damage your skin. - What SPF number should I use daily?
Dermatologists recommend a broad-spectrum SPF 30 or higher for everyday use. - How often should I reapply sunscreen?
Every 2–3 hours, especially if you’re outdoors, sweating, or after washing your face. - Can people with dark skin skip sunscreen?
No, all skin tones are equally at risk of sun damage and skin cancer. - Is a higher SPF better than SPF 30?
Not necessarily. SPF 30 blocks 97% of UVB rays; what matters more is correct and regular reapplication.
