If you really don't understand the difference between plastic surgery and skin beauty, and can't figure out the relationship between invasive and non-invasive, you just need to know that all bleeding, broken skin and severe pain are plastic surgery! Most beauty salons are not qualified to do it for you! Doing it at home by yourself is a death wish! After watching the video of the first answer, I actually used alcohol, which was a close call! If the subjects really want to try micro-needle beauty at home, they can use nano-chips. The effect is similar to that of microneedles, but the effect is not as strong as that of microneedles. However, it is a non-dumping beauty method and can be used safely at home. Now beauty salons dare not use microneedles, but use nano-chips. If you still don't understand, let me clarify the difference between nano-chips and microneedles. The size of microneedles is about the thickness of hair, and the needles of nano-chips are about one thousandth of the thickness of hair. 2. Microneedles need surface anesthesia and self-disinfection, and need a sterile environment. Nanochips do not need epidermal anesthetics and have no strict requirements on the environment. 3. There is severe pain when using microneedles, accompanied by symptoms such as broken skin and bleeding. Nanochips are painless, non-invasive, skin-friendly and bleeding-free. 4. Microneedle introduction requires skilled operation, and improper use will cause permanent wounds. At present, microneedles are generally only used in plastic surgery hospitals to treat skin diseases and repair products such as water and light. It's not worth the candle at home. Any invasive operation is not recommended to be handled by itself. Of course, if you have enough confidence to ensure that disinfection will not be infected, you can also consider it. But there are many problems that need to be paid attention to. Choose the right needle, the right product, disinfection, operation, etc. Personally, it is not recommended to do it at home.