I have a beauty salon,  beauty shop, is an establishment dealing with cosmetic treatments 
That's awesome. Is it only for women or can men go there too?
I also include hair salons and spas.So men can go there too
Oh I see. I always wanted to try a manicure. My nails look terrible.
beauty salon and a hair salon and although many small businesses do offer both sets of treatments; beauty salons provide extended services 
Interesting. Do hair stylists work for themselves or are they employees?
I also offer nail bar is a specialty beauty salon establishment that primarily offers nail care services 
Oh OK. I know nails are a specialty. Nail salons specialize in them.
nail technicians or manicurists or 'Nailists' (the well-known appellation of nail technicians