Do women get more leeway being critical of the weight or appearance of other women?

The other day I was at the checkout line and while waiting I glossed over the magazines in the rack they always seem to have at the checkout, on the cover of one of them (a magazine geared towards women), they were talking about which female celeb had the best ”beach body”, and who had the worse. If it had been Maxim, Sports Illustrated, FHM, etc. it might have been seen as sexist, but since it is a women’s magazine commenting on other women, is it sexist as well or not so because it is women-on-women commenting, even if less than flattering?