hiya zo zo
cant comment on the actual treatment as i dont do it & dont know anyone that has had it done, but i remember seeing it on this morning & the doctor (cant remember his name but its not dr hillery) was talking about acne & recommended n-lite & explained why it worked, if i remember rightly it has 2 different coloured lights, one kills of the bacteria that cause pustules, the other helps to heal & rejuvinate the skin. this is just what i remember & my memory is not the best so i may have got this slightly wrong, but i hope this helps.
sharez