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?
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
Aesthetic salon (Japan)
Japanese aesthetic salons are popular establishments in Japan where men and women go to receive a great variety of mostly non-surgical beauty treatments, including hair removal, slimming treatments, and facial care. The beauty industry in Japan is extremely widespread and lucrative, grossing an approximated $4 billion per year with estimated 173,412 establishments nationwide in 2003.
Leading salons.
Among the leading aesthetic salons in Japan are the Tokyo Beauty Center with 417 shops and average annual sales of ¥41.7 billion