Boston: best place for eyebrows?

I'd like to give a friend with unruly eyebrows a gift certificate for a
tweezing job. Where's the best place to get that done in Boston?

I go to Michaud Cosmedix on Newbury street and have for years.
http://www.michaudcosmedix.com/index.html
Sarah is the BEST!

Wonderful, thank you so much!