How is the skin analyzer work?

How is the skin detector work?
In general, there is two kinds of skin detectors.
A. Can be used directly and show date one the creen. Some inde explain. This kind of machine only for basic test, for personal usage.
B. This kind of machine connect with computer by USB cable line.
Pore, moisture and many item will be checked. Machine do comparing with date basic then offer skin explaination.

Some skin analyzer offer skin care tips. Your face picture will be showed, also test result can be printed. For beauty salon usage for personal usage all ok.

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