What Happened to the Removable SMP Pigment?

Hi,
I read in March of this year on this blog you were soon to be trialling a new SMP pigment that was possibly reversible in one laser treatment. Are there are further developments with this?

Thank you

The initial laser-reversible pigment we obtained was tested on a very limited basis and in small cases. Unfortunately, we were unable to obtain more than the test supplies and have been unable to find a substitute… so it’s not something we pursued much further.

We currently only use permanent pigment in SMP sessions.