First off, I am still on 40mg/day. I've been on the 40mg dosage for 2-3 weeks now, so it's a little early to report anything seriously concrete.
My skin was dry & flaky even before upping the dosage. I had been using the Clinique Moisturizing Gel with a few drops of jojoba oil nightly, after washing my face. I would not wash or do anything to my face in the morning.. just apply foundation & concealer and out the door. This was not working for me. Half way through the day I would be flaky and gross. So now I'm using the CeraVe Renewing SA Lotion. I bought it at Walmart for $16. This is serious stuff! It is very thick and I do not recommend applying it in the morning because it does look greasy. It has not made me break out. I'm normally a Sephora snob when it comes to skinscare products but this stuff works better than anything I've tried for Sephora.
I've noticed that my face has been getting a lot of whiteheads--you know, the kind that you can't pop/extract, they're not red or inflamed. But I can feel them with my hands when I wash/moisturize. They are mostly on my temples, which is weird because I almost never ever have any acne there. I don't like it So, since I'm a naughty-naughty bad girl, I decided to go against the popular advice and go ahead and invest in a Clarisonic Mia 2! I bought it on sale online at skinstore.com for $120. I have now used it for 3 days (just once a day, at night) and I already have less whiteheads. I'm still using it with my Origins Checks & Balances foaming wash. I love that stuff.
I bought a Beauty Blender at Sephora for about $20 and this little thing has made applying my foundation a DREAM! It's just a little sponge for aplpying liquid foundation. I've always used my fingers for applying makeup but this has made my makeup appear more dewey, which is impressive for dry skin on Accutane. I've also seen knock-off brands at Marshalls for like $5. (Kicking myself!)
I am not using any topical treatments, no BP or sulfur. I've just been very gentle these past few weeks. However, the new CeraVe lotion I'm using does have salicylic acid (hence the "SA" in the name), but it's not very much and it's only meant to help shed dead skin. So far it seems to be doing just that.
I don't know how long I'll be on Accutane for. I recently talked to someone who was on 40mg for 7-8 months! Her skin is perfect now. Since I was on 20mg/day for the first 90-ish days, I'm thinking another 90 days on 40mg/day might work.