Do you usually use Debbie's acrylic knot sealer once or do you need to apply regularly? My stylist says she never uses knot sealer but 7 weeks into wearing I'm shedding like a dog lol, really losing a lot of hair quickly, this piece is already shot and want to try knot sealer on my next one to see if I get longer use out of the new one than I got on this one. Ibetalot- As far as the scotch guard, do you know if I use it did you need knot sealer as well or did just the scotch guard help ? Thanks.