It was my initial experience using the collagen roller, and I admit I felt a little apprehensive about how my skin would respond. I recalled a live video demonstrating the proper technique, which made it seem quite straightforward. My skin did exhibit some redness, but after applying their skincare products, it appeared to absorb them thoroughly. The following day, my skin looked noticeably brighter, and perhaps it was just my imagination, but it also seemed more plump. I will definitely be doing this weekly, maybe mid week. Why didn't I try this before! A must have.