At-home teeth-whitening kits brightens smiles two to five shades with 30% carbamide peroxide during 15- to 30-minute daily treatments

• Limit 2 per person, may buy 1 more as a gift. Does not ship to AK/HI/Canada/Puerto Rico. Most orders are delivered within 2 1/2 weeks from the purchase date. Does not ship to PO boxes. See return policy. Must pay applicable tax and provide name and shipping address at checkout, which will be shared to facilitate shipping. Goods sold by Groupon Goods.
• See the rules that apply to all deals.

$28 for an at-home teeth-whitening kit (a $169 value), which includes:

• One whitening-gel pen that includes 11 applications of 30% carbamide peroxide, made fresh with each order
• Three thermoform mouth trays that mold to teeth
• Instructions in English and Spanish
• Free shipping to all 50 states

$50 for two of the above teeth-whitening kits (a $338 value)

Platinum Whites’s smile engineers package the same professional whitening solutions used in dental offices into affordable at-home kits. Each kit uses heat-molded trays and water-based gels containing 30% carbamide peroxide to brighten smiles without over drying teeth or harming sensitive nerves. Gels arrive in an easy-to-use pen applicator, which helps to reduce waste and minimize contact with gums or wax-lip collections.