Feature:1. This product can help you correct the bad habit of opening your mouth to breathe while sleeping.2. The use of healthy and safe materials will not cause allergic reactions.3. This product has good stickiness, and will not fall off at night and has no smell.4. This product uses pure physiotherapy, no side effects, can be used with confidence.5. It is very easy to peel off, leaving no trace, making it more comfortable to use.How to use: 1.Wash and dry your lips and the skin around yout mouth. Dirt,oils, moustache, beard,moisturizers and makeup can weaken the adhesive.2.Remove the protective liners. Close mouth with lips in full contact with one another.3.Place the strip centered across your mouth.press both ends and rub genty to secure.