I made a little discovery the past week when I got lazy with moisturising after applying differin. I've been very consistent about using moisturiser every day and 30 minutes after applying differin at night, but the last week I haven't, and I'm sort of noticing the small spots I have, as well as the larger nodules are going away? Is this only due to my skin drying out (which isn't really a good thing, nor a permanent solution) or could it be that the differin is more effective when it's the only product I apply? It's not like I became acne-free this week, but my skin has felt better, more clean and less breakouts after I started only applying moisturiser during the day, but it might be a coincidence, or I might have to pay for it later this week if my skin gets too dry. Any experiences with this? And does anyone here NOT apply moisturiser with retin-a and finding this effective and not too drying?