Liquid glass protection

According to textual information this is Screen protector in liquid form. You need to apply on your gadget surface and takes 5 minute to settle to be usable as other screen protector and 12 hours to fully settle. It even lost in around 12 months.
It can be applied on spectacles, mobile/laptop/tablet screen or any surface you want to protect.Available at £6.99 in UK.
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This product looks promising as current traditional plastic protectors dims screen light heavily.