Sunscreen Day 2026: Dermatologists bust seven common myths you need to stop believing now

Sunscreen Day, observed annually on 27 May, serves as a timely reminder of the importance of applying sun protection regardless of the weather — not merely for cosmetic reasons, but as a fundamental health necessity.

Dermatologists continue to stress that sunscreen remains one of the simplest and most effective tools available for preventing long-term skin damage, premature ageing, and skin cancer.

Experts recommend choosing a broad-spectrum sunscreen with a Sun Protection Factor (SPF) of 30 or higher, as this protects against both UVA and UVB rays. UVA rays are associated with premature ageing and pigmentation, whilst UVB rays are the primary cause of sunburn.

Despite growing awareness around skincare and sun safety, widespread misconceptions continue to influence how — and whether — people use sunscreen. This Sunscreen Day, leading dermatologists address seven of the most persistent myths head-on.

Myth 1: Being indoors means sunscreen is unnecessary

Dr Gaurav Garg of Dermalife Skin and Hair Clinic explains that sun protection is not reserved for beach outings or sweltering summer afternoons.

"Sunscreen is not just for beach vacations or peak summer afternoons. Most people think sunblock matters just when it's hot or sandy.

The truth shifts things: ultraviolet hits every season, sneaks through cloud cover, slips inside via window panes. So, morning routines should include a layer, no matter if sitting by glass, behind a wheel, or ducking out for minutes," he says.

Dr Rinky Kapoor, co-founder and director of The Esthetic Clinics, echoes this view, urging people to regard sunscreen as a daily necessity rather than an occasional product.

"It is one of the most effective tools we have against premature ageing, pigmentation, collagen breakdown, and even skin cancers," she explains.

Myth 2: Cloudy weather makes sunscreen redundant

One of the most prevalent misconceptions is that overcast skies offer adequate protection from UV radiation. Dr Garg warns that UV rays can quietly damage the skin even on cloudy days or when sitting near windows indoors.

"Over time, cumulative exposure contributes to tanning, pigmentation, wrinkles, collagen breakdown, and uneven skin texture," he cautions.

Dr Kapoor adds that Indian skin tones are especially susceptible to stubborn pigmentation and uneven texture as a result of cumulative UV exposure, even during overcast conditions.

Myth 3: Darker skin tones do not need sunscreen

The belief that people with deeper complexions are naturally immune to sun damage is another widely held misconception.

"Melanin helps, sure — but shadows on skin, uneven tone, ageing from light exposure? Still possible across all shades," says Dr India. In a country where pigmentation concerns are particularly common, regular sunscreen use is considered even more important.

Myth 4: Sunscreen blocks vitamin D absorption

Concerns that sunscreen prevents the body from absorbing vitamin D are largely exaggerated, according to dermatologists.

Dr Garg notes: "Some people think putting on sunscreen blocks all vitamin D. That idea does not hold up under medical review. Out in the open during daily tasks, many soak up enough rays without trying. Believing that makes sunscreen pointless might invite damage down the road."

Myth 5: There is no wrong way to apply sunscreen

Incorrect application can significantly reduce the effectiveness of even the best formulations. Applying too little or failing to reapply are among the most frequently made mistakes.

"For the face and neck, most grown-ups need about as much cream as covers two fingers. Begin spreading it on roughly quarter of an hour before stepping into sunlight — this gives time for the layer to settle right," advises Dr Garg.

Myth 6: One application lasts all day

A single morning application is far from sufficient, particularly in India's humid climate. "Most people forget to reapply. Every few hours works best, more so if you're outside a lot, working up a sweat, or stuck in bright sunlight.

"If you are swimming or poolside, water-resistant sunscreens can be handy. However, they won't last forever," Dr Garg advises.

Myth 7: Expensive skin treatments replace the need for sunscreen

No skincare treatment — however advanced or costly — can compensate for inadequate sun protection. "No skincare treatment, whether it is lasers, chemical peels, anti-ageing injectables, or pigmentation correction procedures — can deliver lasting results without consistent sun protection," Dr Kapoor explains.

"In fact, sunscreen is what helps preserve and enhance the benefits of advanced dermatological treatments," she adds.

Ingredients worth looking for

Shaily Mehrotra, CEO and co-founder of Fixderma and FCL, notes that consumers are increasingly paying attention to filter quality, texture, and skin compatibility rather than relying on SPF numbers alone.

"Ingredients like Uvinul A Plus, Tinosorb technology and newer-generation UV filters now allow formulations to deliver stronger and more stable UVA and UVB protection while maintaining lightweight, breathable textures," she says.

Zinc oxide remains a trusted mineral filter, particularly for sensitive and acne-prone skin, and improvements in formulation technology have largely resolved earlier concerns around white cast and greasiness.

Celebrity dermatologist Dr Bindu Sthalekar of Skin Smart Solutions advises consumers to look at the specific ingredient lists when selecting a product.

Mineral sunscreens rely on zinc oxide and titanium dioxide, which sit on the skin's surface and reflect UV radiation — ideal for sensitive or post-procedure skin.

Chemical sunscreens use ingredients such as avobenzone, octinoxate, and newer-generation filters that absorb UV rays and convert them into heat, offering lighter textures suited to hot and humid climates.

Many modern formulations also incorporate antioxidants such as vitamin C, vitamin E, niacinamide, and ferulic acid to neutralise free radicals caused by UV exposure and pollution.

Hydrating ingredients including hyaluronic acid, glycerin, ceramides, and panthenol further support the skin barrier — whilst tinted sunscreens containing iron oxides offer added protection against visible light-induced pigmentation.