How do I tell her she smells😐

Ok guys so one of my closest friends isn't very great at keeping up with her hygiene care. Idk if I'm being mean but it's gotten to a point where it's too much. So what I mean is that she'll go days without shaving her arm pits to the point where it's so noticeable it's like come on dude get rid of the bush under your arms already or sometimes you can just tell she won't shower for days or brush her teeth😭 her oral hygiene I won't even get into because it's basically the same crap. But recently we went out and she legit smelled like dirty like she needed a shower she legit smelled like ass😩 she dresses well & is a very cool girl she's into makeup your typical girly girl BUT her hygiene is horrible & she has a BF & sometimes I feel maybe I exaggerate but this last time we went out it was like wtf am I the only one who notices this shit??? 😰 I've never said anything to her but I think about it & maybe I should idk what do you guys think🤔🤔🤔