I started using Nihon in early November 2024 because, at that time, I was struggling with bad acne. Initially, when I began using Nihon, my face started purging, and I was very worried about whether this product was right for me. Then I read that purging is normal for those who are exposed to retinol for the first time. So, I decided to be patient and continued using it.
Now, after almost two months, the purging has subsided. I only have a few small acne spots and scars left, and my skin is muc...