Another bit of information worth noting is that mosquito patches contain different ingredients. Those for babies and kids most likely have natural ingredients such as citronella, a known repellent. On the other hand, skin patches probably contain vitamin B1.
Are Mosquito Patches Safe for Babies?
Answering this question is quite tricky, seeing that there are very few references focusing on mosquito patches for babies (the ones parents need to stick to their crib or stroller).
Baby patches sold by reputable manufacturers are probably safe for babies as long as you use them accordingly; that is, they wouldn’t be able to reach for it and then put it accidentally in their mouth or eyes.
As for their effectiveness, we’ll need more studies.
Mosquito Skin Patches Are Probably Ineffective, Studies Find
Are mosquito patches safe for babies? Yes, however, whether they are effective, that’s another matter. Vitamin B1 patches supposedly work by saturating the skin with B1, making them more “unattractive” to mosquitoes.
In one study1, the researchers discovered that B1 patch had no effect on two Aedes mosquito species known to spread the dengue virus (Aedes aegypti and Aedes albopictus)