Stocking up on teeth whitening essentials just got easier. Crest 3D Whitestrips are now available for under $30 as part of Amazon’s early Big Deal Days promotions — even cheaper than last year’s Prime Day price. The official Prime Big Deal Days for 2026 are set for October 7–8, but Prime members can take advantage of these limited-time discounts starting today.
The Crest 3D Whitestrips Professional Effects Plus kit includes 20 treatments, each with upper and lower strips, plus two bonus one-hour express whitening treatments — totaling 44 strips. With 24 daily applications, users can brighten their smile for up to a year by wearing the strips once a day for 30 minutes. They’re comfortable enough to wear while talking or sipping water, making them a convenient addition to daily routines.
Amazon shoppers are encouraged to act quickly, as supplies are limited.
Customer reviews highlight the effectiveness of the strips:
AAndC: “My fiancé and I saw immediate and significant improvements in our smiles. This pack lasted both of us for nearly a year, making it a worthwhile investment.”
Donnie: “After using the express strips twice, my teeth are glowing. They initially made my teeth a little sensitive, but the effect faded within hours.”
MaRyan R.: “Even with crowded teeth and a four-tooth bridge, I saw noticeable whitening after just five days. My gums are slightly irritated, but nothing that discourages use.”
Amazon’s oral care deals extend beyond Crest Whitestrips:
Oral-B iO Series 9 Electric Toothbrush – 29% off. Offers seven cleaning modes, three extra brush heads, and a travel case. It provides real-time feedback on brushing pressure and coverage via a connected app.
Davids Fluoride-Free Nano Hydroxyapatite Toothpaste – $9.95. Vegan, naturally sourced, whitening, and suitable for sensitive teeth. Available in peppermint or orange vanilla flavors.
Cocofloss Cocobrush Manual Toothbrush – $9. Soft, angled micro-bristles reach under the gum line for gentle cleaning.
Cocofloss Woven Dental Floss – $9.99. Ideal for adults and kids, comes in flavors like strawberry, pineapple, and watermelon. Essential for removing debris that water flossers can’t reach.
With these deals, Amazon Prime members can refresh their oral care routine while saving on top-rated products.