Acetate：

When it is to be corroded by sweat, which is alkaline, need to keep the frame dry, it is better to wash it once a day, with neutral detergent and cold water, and then dry it with paper towels.

Use a clean soft cloth, dip it in some toothpaste, and gently wipe it down until it is clean.

Metal:

Do not contact with toxic gases, smoke, and do not let sweat left on the frame, need to wipe often.

Injection:

Do not be placed in the sun for a long time exposure, nor use hot blisters, or it will be easy to cause the deformation of the eyeglass frame and break.

Titanium:

Pure titanium frame is with light weight, corrosion resistance and noble quality, but the disadvantage is that the material is soft and easy to deform.