What is the optimal level of SPF to wear on your body?
According to Dr Granite, SPF 30 or SPF 50 is a typically sufficient level of protection for both body and face. Meanwhile, Dr Kamenica explains that “SPF 30 blocks around 97% of UVB rays, however, for prolonged sun exposure of post-treatment skin, using SPF50+ is strongly advised to shield more vulnerable skin.”
“This level of protection helps defend against sunburn, premature ageing, and pigmentation-related issues,” she adds. Luckily, most of the best body sunscreens offer at least SPF30.
How often should I reapply body sunscreen?
“When in strong sun, it's best to reapply sunscreen every 2-3 hours,” shares Dr Granite.
“It’s important to remember that no sunscreen is truly waterproof, it’s only water-resistant. This means that if you’ve been swimming or sweating – both of which are common on holiday – you should reapply every time you towel off,” explains Dr Engelina. She also reiterates the importance of reapplying sunscreen even if you're not in direct sunlight.
Dr Kamenica also says that “reapplication is critical depending on sun intensity,” particularly if you're planning to be out when the UV rays are at their most aggressive state (which usually happens around 12pm, subject to where you are).
Spray vs. cream – which form of body SPF is best?
Dr Granite shares that whether you're opting for a lotion, a thicker cream or a spray, “the form of SPF does not matter, as long as you apply enough and reapply as needed.”
“The efficacy largely depends on how well it works with your skin type and how it's applied,” shares Dr Engelina. “It’s important to use enough product to fully cover the area you want to protect.”
“Some forms, like lotions, make it easier to apply an even layer, while sprays may be quicker, it has a higher risk of under application. Gel formulations can be a better option for oily or acne-prone skin, while thicker creams are often more suitable for dry skin,” she adds.
How to apply body sunscreen properly, according to dermatologists
“Almost half of us don’t apply enough sunscreen to get the proper protection we need,” explains Dr Engelina. “ In line with established guidelines from the British Association of Dermatologists (BAD) and the World Health Organization (WHO), you should use a total of 6 to 8 teaspoons (approximately 30 to 40ml) for full-body coverage,” she reiterates. “This is equivalent to a shot glass worth of product,” shares Dr Granite.
According to Dr Engelina, some of the “most commonly forgotten areas include the ears (especially behind them), the back of the neck, the scalp (particularly along partings or thinning hair) and the tops of the feet.”
“Remember, the sun can still reach these spots, even if they're small or not top of mind. So be sure to cover every part of your face and body, including those easy-to-miss areas, for complete protection,” she adds.
Can I use the same sunscreen on my face and body?
“You can, but often body formulas will be thicker and richer than those developed for the face, so they have the potential to cause congestion and breakouts,” says Dr Granite.
“Facial formulations typically come in smaller pack sizes, so applying them to your entire body is not always practical. I would also avoid applying aerosol sunscreens directly to your face to avoid inhalation,” she adds.
That said, Dr Engelina explains that “for those with reactive or acne-prone skin, it's often better to use a sunscreen specifically designed for the face, as these formulations tend to include beneficial ingredients like oil control and added hydration.”
Chemical or mineral – which body SPF formula is best?
“Mineral sunscreens sit on top of the skin and physically block UV rays, making them a better option for sensitive or breakout-prone skin. Meanwhile, chemical sunscreens easily absorb into the skin and convert UV rays into heat, but can sometimes cause irritation, especially post-treatment,” shares Dr Kamenica.
Elsewhere, Dr Granite explains that “physical sunscreens have the potential to cause an ashy finish or a white cast, especially on deeper skin tones – given the presence of titanium dioxide and/or zinc oxide.”
That said, most modern-day mineral sunscreens have evolved to adapt to a whole range of skin tones without resulting in a white cast, making them all the more suitable for deeper skin tones. Of course, "alternatively, you can always choose chemical formulas, which tend to blend more seamlessly,” shares Dr Engelina.
“To improve application, warm the sunscreen between your hands first, then apply in sections to help it melt smoothly into the skin without leaving a visible residue,” she adds.
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