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 salon
A nail salon or nail bar is a specialty beauty salon establishment that primarily offers nail care services such as manicures, pedicures, and nail enhancements. Often, nail salons also offer skin care services. Manicures are also offered by general beauty salons, spas and hotels. People who work at nail salons are usually called "nail technicians or manicurists or 'Nailists' (the well-known appellation of nail technicians in Vietnam, Japan and some Southeast Asian countries)."
Nail salons offer a variation of
Beauty salon
A beauty salon or beauty parlor (beauty parlour), or sometimes beauty shop, is an establishment dealing with cosmetic treatments for men and women. Other variations of this type of business include hair salons and spas.
There is a distinction between a beauty salon and a hair salon and although many small businesses do offer both sets of treatments; beauty salons provide extended services related to skin health, facial aesthetics, foot care, nail manicures, aromatherapy — even meditation, oxygen therapy, mud baths and many