I found quite a detailed review here which also included some input from an NYU professor and the Director of the Division of Primary Care in the Department of Medicine at NYU.
The bottom line is: Zeno is recommended for people who get the occasional pustule and not for people with severely inflamed red pustules or those who suffer nodular cystic lesions with scarring.
Thanks for sharing info about Zeno but I was asking about blue light therapy which is not the same as thermal acne treatment
It is a new technology that makes use of high intensity LED bulbs to transfer blue light to the affected areas and cures acne after regular usage for up to 3 months.
And since I have been using this I have got hardly any acne, my skin is also much smooth.
The best thing is that If I have got a spot then when I use the blue light it heals in 2-3 days than the usual weeks! It is an expensive product but totally worth because I dont need to buy always more skincare products to enhance my skin!!