Essence introduction is the use of professional whitening, acne or wrinkle essence, coupled with the penetration of the heat introducer, so that the essence quickly reach the basal layer of damaged skin, to help metabolize melanin, acne marks and pigmentation and other problems, in improving skin-related problems at the same time, so that the skin is fair, moist and shiny. Essence introduction there are certain risks and hazards, although the incidence is low, but need to pay attention to the following: 1, skin allergies: skin care, the choice of essence is particularly important, should be based on their own skin type, choose a small degree of sensitivity, or even non-sensitive skincare products, to avoid unnecessary damage brought about by allergies; 2, infection: the introduction of the instrument is not in place to clean the skin, skin care is not good basic care Factors such as the introduction of instrument cleaning is not in place, the basic care of the skin is not done, may lead to skin infection, so that the skin appears red and other infections; 3, skin detoxification function is weakened: due to the use of the introduction of the instrument may destroy the epithelial tissues of the skin, which may lead to the detoxification function of the skin is weakened. On the whole, the essence of the introduction can help the skin to absorb the nutrients in the skin care products, balance the pH of the skin, reduce wrinkles, wake up the skin, so that the skin is more radiant, the rational use of the risk can be avoided.