Undecided Question

My friend (a girl) has a mustache – should I tell her?

I don't want to offend her, but it's very dark hair. So at the same time that I'm worried about offending her, i know it really detracts from her beauty. she could be very pretty, and still is, but it's very distracting. Also, the hair is very dark and I feel like she MUST know. However for some reason it never shows up in photos? Sometimes there's a light shadow, but that's all.
Should I tell her or let her deal with it on her own, because i mean it's not a lot of hair (it's not like it's bushy) and she is Ukranian so she has tan-ish colored skin… but it's SO dark that it's impossible not to notice? But it seems like she'd do something?!

Help! She's one of my best friends but we've only been *super* close for about a two months (but i've casually known her for 3 years). She is 16. And does wear pretty make-up and hair.

Would this make guys like her less, if she does nothing about it (I think she should bleach it, shaving for girls-NO, and waxing will look horrible as it grows back… I know someone who bleaches theirs and you'd NEVER know they had one)? She has a bit of trouble with boys but she is very cute (other than the facial hair…and she's a little loud/obnoxious/giggly…and not the smartest. but so sweet and nice and great.)