Brighter skin
I used this twice a week for three weeks. The first two time I used it with the sample serum that came with it. The rest of the time, I used a combo of retinol / vitamin C serum, followed by niacinamide. I’m noticed a difference in my skin at the end of week #2. My skin isn’t perfect at all, but looks brighter and more supple. I will definitely be buying more of the roller heads and want to try the Skin Gym glow serum with it.