Thanks!
I'm seriously considering Trichopigmentation with Milena Lardi pigments, but I really need to understand the exact mechanism by which the pigment is deposited, and eventually expelled by the body.
I contacted many sources, but nobody seems to understand exactly how long the ink lasts, whether it is really only 15 microns in particle size, whether it is filtered, centrifuged or encapsulated in a semi siliconic membrane or whether it goes into the lymph nodes or is expelled by the body somehow.
In regards to laser, I rather avoid that route. The whole point of Trichopigmentation was its temporary pigments.