According to its manufacturer’s website, Latisse®️ is a prescription treatment to “grow eyelashes longer, fuller, and darker” and side effects include eye itching, redness, and  “increased brown iris pigmentation in the colored part of the eye.” Other reported common side effects include eye discomfort, dry eyes, watery eyes, eyelid redness, or puffy eyelids. Aside from the darkening of the irises, if you are experiencing any of these side effects from using Latisse®️ you may not be a good candidate for an eyeliner tattoo since your eyes are already irritated. However once you stop using Latisse®️ any side effects should go away. Otherwise if you have no adverse side effects from using Latisse®️ or any other synthetic prostaglandin-based eyelash growing serum then just stop 1 or 2 days prior to and about 2 weeks post any eyeliner tattoo procedure.