I remember them being popular in the early 00’s used them a few times myself as a young teen but then we all realised they were awful, most salons closed. Now people are using them again and it’s all over social media, mostly with young adults, except now they squirt tanning drops up their noses and put drop under their tongue before they go on, I don’t even know what’s in those things, darker the better seems to be the aim 😐