Unlike other line erasers that lessen future wrinkles, 8-Hour Line Eraser immediately removes puffiness, wrinkles and lines, sealing them away for 8 to 12 hours. We just couldn’t believer our eyes the first time we saw it. Dermatologically tested and approved, its formula penetrates the upper dermal layer to plump unsightly wrinkles and shrink enlarged cells to reduce puffiness. The seal is what makes it different from any other. The seal is complete in 3 minutes, smoothing away all fine lines for hours.