This has worked so well on my acne-prone mature skin. My breakouts surface/resolve/heal faster when I spot treat my problem area (chin). Before, they would be larger, deeper, more inflamed, and last for weeks, even with my topical prescriptions. When I've used this consistently, I stay clear.  I don't use on my entire face- just chin and an occasional spot elsewhere-  so this size is convenient and works well for me. 

It doesn't do much for me. The science is there but the tool is simply ineffective. If you really want to try out LED treatment, I will suggest that you opt for an in-office treatment from a reputable cosmetic dermatologist. Generally for acne issues I recommend Neutrogena Rapid Clear Stubborn Acne Daily Leave-On Mask (2.5% benzoyl peroxide) and Peter Thomas Roth Therapeutic Sulfur Mask (10% sulfer). Of course, prescription tretinoin is the the holy grail if you can tolerate it.

I have really dry sensitive skin, especially in the winter, but lotions, masks, and serums make me break out. I was stuck in a cycle where my skin was clear but really dry so I would exfoliate and moisturize to hydrate but then that would cause me to break out. Finally my facialist recommended blue light therapy and after doing a lot of research I went with this one. After just one week I noticed a real improvement in my skin. I have been using it for about a month and my skin isn't completely clear (which is why I gave 4 stars instead of 5) but it looks so much better and the light doesn't dry my skin out at all. Honestly it's the only thing that has works for me at all. I would absolutely recommend this product. It's expensive but worth it.