We are a high-tech enterprise specializing in the research, development, production and sales of beauty equipment, focusing on skin care and research. Our spirit of craftsmanship keeps improving, making our products more effective and harmless. Why others can suck out blackhead, but I can't?Blackhead firmly exists on the pore, the key to suck out is to open the pore. The pore will open when it meets hot, so that you can use facial steamer or hot towel 5~10 minutes, or directly use exporting liquid (Highly recommend) to open your pore.Will it lead to bruised and redness?Before you using this on your face, you should try to use it on your arm to know the suitable suction. PLEASE DO NOT start with a high suction, because it will lead to bruises and redness. It is absolutely normal to have light bruising or red every time use.DO NOT be worried. Your skin will get back to normal later on. It is normal for any effective system to cause some form of discomfort before you can see results. When I can see the result?It's a long-term persistent process to care your skin, not only remove the blackhead remover but also microdermabrasion, please insist on using it 3-4 weeks to see the surprise effect. Reminder once again: It gets slightly worse before it gets better! But it's worth it! Please tolerate the LIGHT BRUISING & REDNESS at the beginning. It is absolutely normal.WARM TIPS:★Don't stay on one place too long to prevent from purple and red skin.★Don't use it over 5 minutes a time to prevent from skin damage.★Don't use it on skin where has scar or is flimsy, such as jaw and corner of mouth.★Don't wash the blackhead remover body, it is not waterproof.