Yes it's effective it takes 6-10 treatments. Depends on the strength of the machine. If you do not see "some" lightening by several treatments, you may need vbeam or 1064nm laser for a deeper treatment.

Yes, IPL can help with PIE, V Beam better, sapphire cooling old, V Beam has a spray, so safer... can drop the pulse duration to cause bruising so 3-4 times more effective and safer than IPL> if dark skin long pulse Nd Yag.