Hello, I am Dr. Neal Schultz, and welcome to DermTV. There is a lot of confusion about what you can use Retin-A and other retinoids with and what you cannot. As a matter of fact, in one week last month, we had four different questions from viewers about this same subject. The real issue here is the fragility or instability of retinoids like Retin-A, adapalene, Atralin and Tazorac. That instability means you cannot use those chemicals with acids, acids like glycolic acid or salicylic acid, both of which are used to treat acne and also for exfoliation. However, you can use Retin-A and other retinoids and those acids as long as you are using them two opposite ends of the day, so one does not touch the other. However, when it comes to antioxidants and retinoids, I am happy to say: there is no conflict, there is no problem. They can be used together as long as they are layered properly, so they both can come into contact with the skin. So, with acids like glycolic and salicylic, they cannot be used at the same time as retinoids, but at opposite ends of the day, and with the antioxidants, they can be used with the retinoids. And do not forget one other thing: In order for antioxidants to work, they cannot be used in sunlight. So use your antioxidants at bedtime. Please join me again at DermTv.com. If you have a question, please send it to me by visiting: DermTv.com/question. I am Dr. Neal Schultz, and thank you for watching today.