Do all colors of ink respond to laser treatment equally?

While doing my research online, I have notice that not all laser treatment on the colors itself have the same equal treatment. The following colors respond differently:

Dark blue, black and red inks are the easiest to treat.
Orange, yellow, and purple usually respond moderately well.
Green, sky-blue inks are the most difficult to remove.
White and pink tattoos usually respond poorly.

For illustration only.

Luckily for me, mine is purely in black. :-)

I will be going for my 2nd session this week and will continue to update again soon.