The sunscreen formula that started it all, with SPF 50.
*Please refer to the ingredient list on the back of your product packaging for the most current and accurate information.
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It’s the stuff we use every day. It’s the sunscreen formula that started it all. People say it smells like summer®. We like that.
The sunscreen formula that started it all
Helps shield against harmful UVA/UVB rays
Stays on through sweat and water for up to 80 minutes
The SPF (Sun Protection Factor) on a bottle of sunscreen indicates the level of protection we're getting from the sun's UVB rays—which are the sun rays most commonly responsible for sunburns and skin cancer.
SPF, which stands for Sun Protection Factor, has been used for decades to determine the level of protection someone can expect from the sunscreen they use. It can often vary from person to person given multiple factors such as testing methods and environmental factors. In addition, everyone’s skin is different, which can also affect what kind of SPF is best suited to fit their individual needs.
A common misperception is that the SPF number on a bottle signifies the amount of time you can spend in the sun without getting burned (30 minutes for SPF 30, 50 minutes for SPF 50 etc.) This is not accurate. In fact, the SPF rating system is far more complex and based on the degree to which a certain formula protects against the sun’s harmful UVB rays over a certain period of time. For example, a sunscreen with a rating of SPF 30 allows only 3 photons per 100 to penetrate the skin, meaning it shields approximately 97% of the sun’s harmful UVB rays. This roughly translates to 30 times the protection you’d have versus using no sunscreen at all. This extends to SPF 50 (98% or 50 times the protection) and SPF 70 (98.5% or 70 times the protection). The length of time that a sunscreen will protect you from sunburn will vary based on the UV index at the time as well as other factors.
At Sun Bum, we like to think we make sun care products for everyone. So, whether your SPF preference is 30 or 50, mineral or non-mineral, lotion or spray, you can stay protected from the sun’s harmful rays. As noted by the Skin Cancer Foundation, “The best sunscreen is the one you’ll use.”
Global SPF assessment standards have been updated several times over the years, with the most recent update in 2019. The purpose of these updates—which were led by regional regulators and groups such as the International Organization for Standardization (ISO)—was to reduce the variability of SPF assessments. Currently, even the globally recognized “gold standard” SPF test — the in-vivo test known as SPF ISO-24444 — is subject to considerable variability due to the inherent human biases built into the testing process (Ruvolo, Yousefian,International Journal of Cosmetic Science, Dec. 2025). Because of this, there is an increasing call for governments and regulators to update the testing protocols and standards they recommend for manufacturers to follow — for example, using the HDRS-ISO 23698 test: an in vivo/in vitro hybrid that addresses some of the more subjective factors common with in-vivo only testing. (Ruvolo, Yousefian,International Journal of Cosmetic Science, Dec. 2025).
Avoid making a rookie mistake! Reapply every 2 hours and after swimming, sweating and toweling off.
Yup, 90% of UV rays still find their way through clouds, which means you can still get fried.
We know it’s tough, but try to limit sun exposure when the sun’s rays are most intense (10am to 4pm).
Yep. Reflections off water and snow can increase sun exposure by up to 50%. Keep that in mind when you’re surfing or on the slopes.
Keep newborns out of direct sunlight and always cover them with shade. Check with your pediatrician, before applying sunscreen to children under 6 months.
Overall rating: 4.486577 / 5 from 298 reviews.
This sunscreen lotion offers strong sun protection with a non-greasy feel and excellent coverage. Customers appreciate its light formula and clean ingredients, though some reported allergic reactions. The product is praised for its ability to prevent sunburns and its pleasant smell.
Review topics: ["size","quality","skin","feels","protection","coverage","texture","shipping","customer service","packaging","smells","sunscreen","sun","lotion","ingredients","formula","sunblock","tan","reef","brand","application","face","enjoy","banana","spf","moisturizer","skincare","experience","kids","woman"].
"Great protection"
"One of my favourite Sun Bum products that I continually buy over & over. My skin feels great, it smells like summer in a bottle & I feel putting on sunscreen not only protects your skin but gives you a nicer tan. It’s definitely apart of my skincare routine, strongly over the summer & when needed in the cooler months (aka on a sunny vacay)"
"好みの香りですが無香料と選べるといいですね。"
"LOVE Sun Bum Sun screen Lotion! It has a great summertime scent, feels amazing - not oily and goes on easily. I love it so much. It has become part of my daily morning ritual. - I don’t leave the house without sunburn sunscreen lotion on! The best part is - it actually prevented me from getting sunburned and my skin looks great like it’s been kissed by the sun without the damaging burns from the sun."
"Smells great and protects well against the sun"
"Sun Bum is my go to for all things sun. Seriously. I spend a lot of time in the sun and when I apply my SPF 50, I do not get a sunburn. Ever. I reapply as recommended. I also have really sensitive skin and I do not break out at all. Great product. I love this sunscreen"
"Sun saftey in a bottle. The 8oz size is easy to take along with me and reapply through the day. It keeps my skin moisturized and protected from the Florida sun and smells geeat too🍌🥥"
"I use every single day"
"This is great for my two year old and my wife who is almost allergic to the sun. I love the smell and it gives great protection!"
"1st product to keep me fully protected working in the sun all day long. Not to mention smells amazing"
