After washing your tattoo, gently apply a thin layer of ointment over it. Key word: thin. Applying too much ointment can actually cause the initial scabs to come off prematurely, which could lead to discoloration or inconsistencies in the lines. While tattoo artists have different preferred ointments, they will all advise that you stay away from Vaseline, as it's too thick and won't allow the tattoo to breathe.
Derm-Ink Tattoo Balm ($10)