Rembrandt has launched new whitening strips called StayPut Custom-Fit Teeth Whitening Strips — and the brand says they deliver whiter smiles more quickly.

The new strips are being sold in Rembrandt’s new at-home kits — the 1 Week Whitening Kit and 3 Day Whitening Boost Kit. The brand says they provide visibly whiter smiles in half the time of traditional 14-day kits.

Both kits feature the brand’s StayPut custom-fit whitening strip technology, a new breakthrough design that is customizable to each user’s unique smile. The larger, whitening tray-inspired design provides maximum coverage to whiten the front and back of teeth.

Don Cumming, global brand director for Rembrandt, says, “Our products are made with the same enamel-safe ingredients dentists use to remove deep stains, making them super effective and safe to use,” said Don Cumming, global brand director for Rembrandt. “Offering both the one-week and three-day options allows consumers to whiten their uniquely beautiful smiles in the way that is best for them.”