I had my brows, eyeliner and lips done last year and absolutely love the look. There is nothing fake looking about them. My lips are a beautiful natural berry color and all I wear is a gloss over them.
There is a misunderstanding of the process, you don't actually get tattooed in the sense of a real tattoo, the pigmentation is not permanent and wears (lightens) away after time while a real tattoo is deep into the skin and is forever permanent. I'm ready for an eyebrow and lip touch up this fall, but my eyeliner is still as beautiful as the day I got it. If I didn't get a touch up, the pigmentation would eventually fade away to the way I was before. Anti-aging cremes will fade the pigmentation, as well as the fruity face creams that contain such things as grape seeds or Vit. C.
You must do your due diligence - finding the right artist is extremely important, check them out thoroughly and check their before and after pictures. Ask for the phone #'s of her clients to get testimonials. The professional I use is in Atlanta
http://www.nouveaufaceandbody.com She makes tiny strokes simulating the way your actual natural eyebrows would look, but better.
The professional in the link above from NH appears to do fabulous work as well.
Good luck.