A very important question that arises frequently during pregnancy is, "What skincare products are safe?" The reality is that almost all skincare products are safe to use at any time during pregnancy, and particularly during the very sensitive first trimester, with the exception of retinols.
Retinols are products like Retin-A, Renova, Retinal, and other derivatives that come from those products like tazorac, adapalene, and differin, as well as other products used for either facial rejuvenation or to treat acne. Retinols have been shown to cause some malformations in rodents, not in human beings, but just because we want to be as conservative as possible, no Retin-A related products and no Retinols during pregnancy.
Everything else that is available over-the-counter is safe to use during pregnancy and nothing else has ever been demonstrated to cause any problems with humans. The interesting thing to me is so often women will question particular skincare products while they continue to use moisturizers and cleansers with all sorts of exotic products that no one has ever tested during pregnancy.
The good news is regardless of which list we are talking about -- common skincare products or more exotic skincare products -- the barrier function of your skin which is there to keep the outside world out and to keep the inside world in, is very effective all the time even during pregnancy.
So with the exceptions that I mentioned, use any skincare products during pregnancy and you can be reassured that they will have no effect on the outcome of your pregnancy.