High-concentration 145ppm whitening gel, 45g. Purchased on Amazon in July 2025. I took it out of the outer box once, but it's unused. - Product Name: DRcula EX - Contents: 45g - Purpose: Whitening *Please note that I peeled off the sticker from the outer box, but it didn't come off completely, so a little bit remains. I'm selling it cheaper than others because it's been taken out of the outer box.