I was looking for a Retin A that wasn’t so expensive but did the job. This Retin A is the real deal. It’s a 40 gram tube, most are 20 or 30. So it will last awhile. I’ve only been using it for a couple of weeks. It takes about 4 to 6 months to get visible improvements. I hope it deliveres. I think it will. I will definitely purchase again.