สารกันเสีย is usually added to 1% of the mix ratio. 100 g. When you use it, you can apply it all over your face, not except around your eyes. I read that only 0.5% should be used around the eyes, so I asked if I could wear it. กันเสีย 2, 0.5% each, such as Eye Preserved™ 0.5% , Phenoxyethanol SA 0....