I just tried the forehead,
I just tried the forehead, neck and chest patches the first time last night. I initially had trouble removing the plastic from the patch where multiple small pieces came off the patches, but after that the application was very easy and the patches seemed to stick very well on my skin, which I had just cleaned and dried. Everything felt very secure as I went to bed.
The next morning the neck patch had moved, was half detached and almost fused with the chest patch (even though they were far apart after application). The lines on my neck that I had before were looking much better though even after the first night. However, I got a new line/crease/mark that came from the outer line of the patch, but it went away rather quickly.
I was mostly happy with the chest patch, it felt more sturdy than the other two patches and it had not moved a lot during the night. The lines I had there were looking much better already after one night. However, on the small area where the chest pad had moved, it created a very strong red line with burst blood vessels, which is still clearly visibly as I type this, hours after I removed the patches and will probably stay for at least a couple days.
I was least happy with the forehead patch. The lines I had on my forehead were not any better after the first night, but even worse: it seems I was sweating a bit at night and the sweat on my forehead had nowhere to go but to build little pockets under the patch. When I removed the patch my forehead looked scary, like the surface of the moon as it was covered in dents! Even after my morning skin care routine the dents were very visible and took a few hours for them to disappear.
Conclusion: after the first use I am undecided. The patches on the neck and chest really improved my existing lines after the first use, but the mark from the burst blood vessels on my chest looks ugly and will stay for a while. The forehead patch left craters on my skin and didn't help my lines at all, but I will try all 3 of them again , when I am sure I have no appointments or meetings the next day.