FAQ

1Why should I use SunFly UV Exposure Stamps and Sunscreens?
To protect you and your family from the harmful effects of UV radiation. Like a canary in a coal mine, SunFly UV Indicator Stamps will warn you when your sunscreen is no longer providing optimal protection. Did you know that 99% of skin cancer and up to 90% of all the age-related changes in your skin are due to overexposure to UV rays? Simply put—we want to keep you and your loved ones healthy and looking youthful by using our products!
2Why can’t I just follow the directions on my tube of sunscreen?
Studies show that people don’t put on enough sunscreen to begin with, or reapply often enough to achieve optimal protection. Furthermore, the directions on your tube of sunscreen are generic and don’t take into account real-world variables such as the intensity of the sun, how much you have been swimming or sweating, or even how much sunscreen you applied in the first place. By detecting UV radiation at skin level, SunFly UV Exposure Stamps will tell you whether you’ve put on enough sunscreen to begin with, and when to reapply, based entirely on real-world conditions.
3Are SunFly products safe?
Absolutely. Safety and efficacy are part of our mission statement here at SunFly. We strive to use only the safest ingredients in SunFly’s inks and sunscreens. In fact, the ingredients in our UV indicator inks have an average safety rating between 1-2 (scale 1-10) in EWG’s Skin Deep Database and our sunscreens will have an EWG rating of 1, their highest safety rating possible.
4Will SunFly UV Exposure Stamps work with any sunscreen?
SunFly will be producing a stand-alone UV exposure stamp that will work with any mineral-based and/or waterproof sunscreen SPF 30 or above. We are also tuning SunFly inks to work specifically with SunFly sunscreens and are selling them as a kit with the stamp built right into the sunscreen’s cap!
5How long will a UV Exposure Stamp last?
We engineered the stamp to last all day. Our stamps are waterproof, sweat-proof, resistant to both chlorine and salt, and of course, sunscreen-proof! The stamp will eventually slough off on its own, or you can scrub it off with a little soap and water.
6I have seen other UV detection devices on the market. How are SunFly UV Exposure Stamps different?
Ours work. The competition doesn’t. Here’s why. Other UV detection devices (stickers, bracelets and cards) use commercially available photochromic inks that react to both UVA and UVB. This is a problem because at any given time, UVA is 30-50 times more prevalent than UVB. However, it is UVB that causes sunburns and determines your sunscreen’s SPF. Therefore, our competition yields false positives (indicating you should apply more often than you need to) AND false negatives (won’t necessarily tell you to reapply when you need it). SunFly photochromic inks are only UVB reactive and will saturate with color only when your sunscreen’s SPF value is declining.
7Where can I buy SunFly products?
SunFly UV Exposure Stamps and Sunscreens will be available for pre-order through our Kickstarter campaign next summer, 2018. Connect with us in the meantime for updates, sweepstakes and more!