The Lustre Pure Light Pro uses blue light therapy, transmitted beneath your skin using wearable patches. Scientists have proven that blue light with awave lengthof 415nm can killacne causingbacteria, without damaging the skin whatsoever. All you need to do is stick the patches to your skin, switch the Lustre Pure Light Pro on and you're ready to go. All you need is 20 minutes wear per day for 8-12 weeks, and your skin will be left clearer and smoother. Some people even see results in as little as 4 weeks.