This spray blocks pollen, PM2.5, and viruses, and can be used over masks and makeup. It contains natural hot spring water and is gentle on the skin. - Brand: IHADA - Product Name: Aller Screen - Purpose: Pollen and Virus Protection - Features: Blocks PM2.5 - How to Use: Can be used over masks and makeup - Contents: 100g I had some in stock, but I've started using something else, so I'm selling this. Thank you for looking.