Does it work?

I have not used that specific brand, but I have used other 20% Picaridin pump sprays and found them to be effective.

I've used Sawyer Products 20% Picaridin Insect Repellent for the last couple of seasons and been happy with it. Just used it this morning for a short hike in the BW. Since the active ingredient is the same percentage as the brand you posted, I'd expect them to perform identically.

Our #1 go-to spray is 10% Picaridin, and that one even works against those pesky ankle-biters. So I'm sure this one is good, too.

A fact sheet npic

Yes, picaridin works. Rather than type a whole bunch of stuff all over again, I'll share a link to a public Facebook post I wrote on the subject. LINK

Question about oil of lemon eucalyptus re mschi772 link. Will it make you smell like a big lemon smoothy and maybe be attractive to bears or other four legged critters? I'm serious not joking. I tried the citronella mosquito coils and they seemed to work fine but had a strong "candy" odor . I like the idea of a more natural repellent but don't want to attract a different kind of pest.
Switched from Deet to Picardian this year and thought it worked better for flies but still looking for something better ( the little bastiches love me)

You are going to laugh at this, but I've found this to be extremely effective and palatable to apply, and I'm not a baby: Babyganics Mosquito spray

I spent several hours installing gutters way up north last week at a BWCA connected lake, and the bugs were ravenous. This kept them from biting. The only thing I'd do before a trip is transfer the contents into a tightly sealable container.