NEW YORK, United States — Among the endless stream of women cuddling their babies in Mother’s Day tributes on Instagram earlier this month, one parent’s post had an unusual message in the caption.

“Talk to your doctor about Botox Cosmetic and whether it’s right for you.”

In addition to several posts about the joys of new motherhood, Cosmopolitan’s Beauty Director Carly Cardellino advised her followers about her “go-to” self-care treatment: Botox, the temporary but irreversible injections that smooth wrinkles. The post was marked as a #ad and accompanied by a lengthy medical disclosure of the sort typically found in magazine advertisements and television commercials. “It is not known if Botox Cosmetic passes into breast milk,” it read in part.