My facial esthetician recommended this product for me, as I have had cystic/hormonal acne on my chin area for years. Results can be seen in 4 weeks if you use this product for 3 minutes per day. It’s awesome because you can meditate or listen to a podcast/music while doing this! Can’t wait to start on my Lightstim journey and see results! ✌🏻 P.S. The LightStim facial sheet mask is AMAZING as well. Fits and sticks to my face perfectly - one of my fave sheet masks for sure! 👏🏻 LTKhome LTKGiftGuide LTKbeauty