The mother of two also had some fun with the internet's reaction to her look, posting a meme that reads, "Lisa Rinna at 58," with her recent swimsuit pic, and "Me at 30," with a photo of an elderly woman holding an inhaler.
Actress Andi Macdowell commented on the meme, "It takes work."
Earlier this month, Rinna's two daughters, Amelia Gray Hamlin and Delilah Belle Hamlin, opened up to ET's Denny Directo about the advice their famous mom has given them when it comes to facing scrutiny in the spotlight.
"She'll be like, 'Just F the haters,'" they shared.
For more from their exclusive interview, watch the clip below.