1. Use a hair dryer to blow hot air for a while. After the glue is soft, it will be easy to remove the trademark. Scrubbing with toothpaste will not leave any stains.

2. It depends on the quality of the lens. Good-quality lenses can be wiped clean with a cotton swab dipped in Tianna water and gently wiped clean. However, generally, lenses with printed words are stereotypes that play a role in shaping. When it comes into contact with alcohol or tinna water, it will react chemically and turn into flowers, which will be ugly. If you don’t want to wear lenses and wear flat lenses, you can just take off the lenses and wear the empty frame.