What on earth is "erotic esthetics"?

Erotic esthetics is one business category of Fuzoku industry. Salons offer normal massage and sensuous massage. The former aims at recovery from fatigue and improvement of circulation of blood and lymph, and the latter at Kaishun (sexual rejuvenation) by a stimulus to testicles. At some salons, customers can ejaculate with handjob at the end of a session.
The history of erotic esthetics is long, and they have been loved by many people.
Nowadays, the number of customers expecting healing from Fuzoku rather than arousal are increasing. That means, the populality of erotic esthetic salons are growing more and more.

What is "esthetics"?

So, why the service described above is called "erotic esthetics"?
Before discussing the reason, let's give it a thought about a concept of "esthetics".
"Esthetics" (in Japanese: エステ) is originated from a French word "Esthetique", and it refers to the whole skills of beautification, such as slimming, hair removal, whitening, skin care, and the like.
This word of France, the country of beauty, is in everyone's mouth in Japan.
When we talk about the skills of beautification, we can not do without massage, because vitalizing body's functions is effective in skin care or slimming.
By going to erotic esthetic salons, we can regain the springtime of life and be positive. Moreover, we can become energetic and manly. In a sense, we can say that erotic esthetics is beauty care for men.