- Personal care
- Baby & kids
- Pet care
- EWG VERIFIED™
Return to Help Index
What’s the difference between physical and chemical UV filters?
There are two types of UV filters: chemical and physical. Chemical filters use active ingredients that react on the skin to absorb UV rays and protect the skin. Physical (or mineral) filters create a physical barrier on the skin to block UV rays. According to the Environmental Working Group (EWG), zinc oxide is considered as the safest physical filter.
What does SPF mean?
The sun protection factor (SPF) is a measure of how well a sunscreen protects the skin. The SPF rating is a relative measure of protection against sunburns that may vary between 2 and 100. As the value increases, the protection does too. For instance, a FPS value of 30 will block 97.4% of sun rays versus 98% for a value of 50. To get this value, manufacturers have to submit their product to an independent laboratory for in vivo tests (performed on skin of volunteers) to confirm the true SPF.
Why choose an SPF 30 sunscreen?
SPF indicates the amount of UVB rays blocked by a sunscreen. SPF 30 will block 97.4% of UVB rays, while SPF 50 will block 98%. As you can see, the difference is relatively small. Although the numbers increase, your degree of protection isn’t significantly better. In fact, the difference between SPF 30 and 50 is minimal—SPF 50 only blocks an extra 0.6% of UVB radiation.
*Health Canada recommends a sunscreen with a minimum SPF of 15.
And very high SPFs don’t come without risks. They give people the impression that they are extremely well protected, so they tend to spend more time in the sun. However, the SPF value is not a time-dependent protection, but rather indicates the proportion of blocked sun rays. This is why we have to re-apply sunscreen every two hours, regardless of its SPF, to efficiently protect the skin.
Are the sunscreens water resistant?
Our sunscreens are partially water resistant because some of their ingredients, including zinc oxide, are naturally water repellant. However, we prefer not to label our sunscreens as such because after they are exposed to water, they will only provide 40 additional minutes of protection before the SPF drops to 15. Therefore, we recommend reapplying our sunscreen at least every 2 hours, and 40 minutes after swimming or sweating.
Why use a mineral sunscreen made with 100% zinc oxide filter?
While titanium dioxide is often used in mineral sunscreens, it only provides partial UV protection. Zinc oxide, on the other hand, offers broad-spectrum coverage (UVA and UVB). According to the Environmental Working Group (EWG), zinc oxide is the soundest sunscreen choice. For an efficient and non-whitening product, it’s important to ensure that there is a high enough concentration of non-nano zinc oxide. *For more information, read our article here.
Why use non-nano zinc oxide?
Nanoparticles are microscopic particles that may penetrate the skin and may have potentially negative health consequences. While zinc oxide as little to no known health impacts, the studies on nanoparticles have not made a scientific consensus yet, thus this field of research is still progressing. In that case, we should act more cautiously.
Nanoparticles are microscopic particles that may penetrate the skin and may have potentially negative health consequences. While zinc oxide as little to no known health impact, the studies on nanoparticles have not made a scientific consensus yet, thus this field of research is still progressing. In that case, we should act more cautiously.
Why use our sunscreen for sensitive skin?
In addition to being a mineral sunscreen made with zinc oxide, the sunscreen for sensitive skin is fragrance-free, dermatologist tested and enriched with 1% colloidal oatmeal. Colloidal oat is a natural medicinal ingredient recognized by Health Canada for skin care purposes. Oats protect the skin barrier and help relieve symptoms caused by eczema and skin irritations. It also features the NEA (National Eczema Association) Seal of Acceptance™ logo, certifying that it is free of ingredients unsuitable for sensitive skin.
Can I use the ATTITUDE sunscreen on my baby under 6 months?
ATTITUDE’s Fragrance-free Sunscreen is among the safest choice according to the EWG. This products is « EWG Verified », hypoallergenic, fragrance-free and only contains worry-free ingredients. We still recommend asking advice to a health professional before applying sun care products before the age of 6 months, since the sensitivity of the skin and allergies are still not well known at this age.