The only kind of tan I consider even slightly healthy is a natural tan. Not one using tanning lotion of any sort or even tanning beds or whatever...
Sure, I tend to sunburn first, then under that sunburn, have a nice tan waiting for me, but at least I have never gotten sunburn blisters.
It's also unhealthy to stay totally out of sunlight... Because you need the sun for various reasons. Sunlight can help those with depression and other problems...
BTW, why do people say that it causes pre-mature aging? So what, you get a few little wrinkles. If you're getting actual sunlight, then it's not exactly pre-mature... It's natural...
In the past several years that I've lived up north in Western WA, I've gotten very pale, and tended to hole myself in my house more than getting out... The cold weather doesn't exactly help as I have a very small frame...
I like seeing a tan on guys, but only if it's a natural one. Fake tans are unattractive.