A few years ago, it was difficult for you to see beauty references in non-beauty salons. This kind of beauty introducer is very powerful, which is difficult for non-professionals to operate and expensive. However, skin care is not achieved overnight. Therefore, many professional beauty introducers that only appeared in beauty salons in the past have introduced "home" versions, including ultrasound, ions and low-energy light sources, which require that skin care products can be introduced into the skin to achieve different beauty functions. However, different instruments use different import principles, and not every skin care product is suitable. If it is not used well, it may have the opposite effect.