The question you typed, and the part nobody adds.

Acne and keratosis pilaris are the two concerns here, treated as questions with published answers rather than as things to feel bad about.

Each post starts from what a dermatology body actually prints, then follows that advice into the places it stops applying. An active that is unremarkable dabbed on one spot is a different question spread over both upper arms twice a day for a year, and guidance written about occasional use on a small area is being asked to cover constant use on a large one. Where that stretch is real, the post names it instead of quietly inheriting the original claim.

Then the same treatment is read again for pregnancy, breastfeeding, postpartum, trying to conceive and PCOS, since one of these concerns has a firm instruction attached in pregnancy and the other has almost none. Both of those facts are worth knowing, and only one of them makes a good headline.