Why is my Permanent Eyeliner Fading So Soon?

3 wks ago, I had permanent eyeliner applied. I followed the aftercare to a tee, stayed out of sun, stayed away from direct shower spray, did A & D ointment 3 x's a day, etc. Just 2 days later, the lines faded to lt. gray! Last weekend I went for the follow-up visit & my eyelids were touched up. Now that the swelling has gone down & the line is thinner, I can see that they're fading to lt. gray again. Is it my skin or what? That was an expensive procedure & I should be happy with the results. :-(