Injections and vital injection difference

Above the injections and above vital injection apparatus are the two concepts,
above the injection device is a kind of syringes,
only injection depth, injection speed, injection dose is adjustable, many people confuse,
thought generally are generally known as above the injection,
such as vital injector machine above mentioned here refers to light injection,
injection water level effect of shallow water hydration as the core of injection.
In order to have better cosmetic effect, of course, some doctors will also add VC, DNA, etc.