SP544 Premium might be the right choice if you experience problems with other repellents. It leaves a nicer feeling on the skin and is not sticky or greasy.
In my opinion the biggest advantage however is the spray’s scent which is way better than most other insect repellents. It’s still noticeable but not off-putting. If you really care about how you smell when visiting mosquitoes this will be your new favorite.
Picaridin emerges as a viable 100% alternative to DEET. While there need to be more studies carried out the available sprays with up to 20% Picaridin can protect you for short and medium trips.Mark
There are some downsides as well: Due to governmental regulation sprays with Picaridin are only allowed with amounts of 20 percent or less. In case you need longer lasting protection you have to stick to DEET repellents. Furthermore from my experience you really have to cover everything with Picaridin or the little beasts will find you. Even if you only miss a small area of your exposed skin.
The pump mechanism could be better because it is quite stiff. In combination with the slippery bottle it can be quite hard to use it with one hand. Fortunately SP564 Premium is also available a lotion, which I prefer.
Summary This spray with Picaridin is a viable alternative to DEET. It prevents mosquitoes from biting you and has almost no side effects.