I hear ya about the S subsided over time. Once I became more gentle with my skin, I noticed the same thing.
So I started on a retinoid, building up very slowly exactly the way she recommends in the book. I am happy to say I am now tolerating it every day with no irritation. And it is addressing breakouts and wrinkles at the same time. Later this year, when we plan on getting pregnant again, I will be going off it, and will be bummed to do so, since I like what it's done so far.
Whatever you decide to start, build up slowly and if you experience any irritation, cut back usage. Maybe now that you have a healthy skin barrier, you will have better success!!
Marcy