Tips for ion skin care instrument: 1, use red+after applying toner to warm and open pores, promote circulation, release positive ions and eliminate garbage; 2. Apply red on the essence, warm and open pores, vibrate and promote the circulation of negative ions, and introduce the essence into a deeper bottom layer; 3. After applying the emulsion, turn on the red light to activate the cells in the skin! It's really useful. I only used half of my face, and I used the same product on both sides, but it absorbed faster, and my skin was smoother, and it was always warm, and I felt very energetic and flowing!