Rows as printed on natpat.com’s live SunnyPatch comparison; dashes where the page makes no claim for the alternative.
Stick it on skin
Arm or leg — somewhere the sun actually hits. Peels on like a temporary tattoo, easy off at day’s end.
Sunscreen over everything
Lather your kid AND the patch. It now wears the exact same protection their skin does.
Watch the color
Clear = protected. Purple = UV is getting through — reapply. Check after swims: sunscreen wears off faster wet.
Easy to Apply and Remove
Peel, stick, done. Comes off just as easily when it's time for a new one — no residue, no fuss.
Stick it on skin
Arm or leg — somewhere the sun actually hits. Peels on like a temporary tattoo, easy off at day’s end.
Sunscreen over everything
Lather your kid AND the patch. It now wears the exact same protection their skin does.
Watch the color
Clear = protected. Purple = UV is getting through — reapply. Check after swims: sunscreen wears off faster wet.
WHAT’S ACTUALLY ON THEIR ARM
NO OILS. NO INGREDIENT LIST. ONE COLOR-CHANGING LAYER.
SunnyPatch is a photochromic sticker: a material layer that reacts to UV light. Clear when your sunscreen is doing its job, purple when UV is getting through.
It goes on skin like a temporary tattoo, wears the same sunscreen your child does, and reads out the one thing you can’t see: whether that sunscreen is still working. Nothing absorbed, nothing ingested — peel it off at the end of the day.
Color-changing UV layerClear → purple with exposure
24 patches per packOne per kid per outing
Ziplock resealable bagSpares stay fresh all summer
Peel & stick on skinOn like a temporary tattoo
Dermatologically tested across skin types and tones. Compatible with all sunscreens. Safe for all ages — the page says babies to Great Uncle Bob.
SUNNYPATCH IS PERFECT IF…
I want to teach sun safety, not enforce it
The page built the product as 'a delightful and effective learning tool' — the color change IS the curriculum.
My kid doesn't believe in sunburn yet
Neither do most kids — UV is invisible. Purple isn't.
We do the science-y approach
Photochromic material reacting to UV: a chemistry demo they wear.
Class trips and sports days
One patch per kid, arm or leg — the whole group reads the same signal.
Why not a UV wristband?
The table below: a wristband meters your wrist. The sticker meters the skin you actually forgot.
Every sun-safety talk fails the same way: you're describing an invisible thing to a person who trusts their eyes. SunnyPatch flips the classroom — the kid watches their own patch go from clear to purple on the doorstep and the concept installs itself. Rita's review compresses the outcome: “It's a great way to make sure kids don't get too much unprotected sun exposure.” The comparison table below is why the lesson sits on the skin, not on a wristband.
BUILT FOR OUTDOOR DAYS
WHY PARENTS KEEP A PACK IN THE BEACH BAG
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The color is the interface
No app, no battery, no charger. UV shows up as purple, on the patch, right where you’re already looking.
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Water-resistant
Stays on through pool and ocean. Check it after swims — sunscreen wears off faster when wet.
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Works with your sunscreen
Any brand, any SPF, sensitive-skin formulas included. Apply it right over the patch.
TEACHERS OF ONE, ON RECORD
What's actually changing color?
A photochromic layer that reacts to UV light — clear when protected, purple when UV gets through.
Can a school use these?
One patch per child per outing; multi-packs below. Wholesale exists too — natpat's retailer page.
Is it water resistant?
Yes. It stays effective during water activities — but reapply sunscreen and check the patch after swimming or sweating, since sunscreen wears off faster.
How long does it last when worn?
As long as your child is out in the sun. Reapply sunblock whenever it turns purple and carry on.
Is it safe?
Non-invasive and worn like a temporary tattoo. Dermatologically tested; the page rates it safe for all ages, babies included.
Why does it stay clear in the car?
Car glass blocks most UV, so the patch stays clear — that’s it working, not failing. Step outside and watch it change.
How long will shipping take?
Orders dispatch same day; usually 3–5 days to the USA, Canada, Australia and Europe.
Do you offer discounts?
Multi-packs are the main way — see the pack picker below. We also run regular sales.
What if it doesn’t work for us?
30-day money-back guarantee. One beach day is usually all the test you need.
STOCK UP & SAVE
3 packs for the classroom of one (or thirty), €32,95.
👩👧 71 verified reviews on the live SunnyPatch widget
Color-changing UV layerClear → purple with exposure
24 patches per packOne per kid per outing
Ziplock resealable bagSpares stay fresh all summer
Peel & stick on skinOn like a temporary tattoo
