Crest 3D Whitestrips are 35% off for Amazon Prime Day 2025

I don’t care how much you spend on skincare, filler, or that new lip tint everyone’s pretending is “natural” — if your teeth are dull, it dulls the whole look. A white smile is the ultimate cheat code. It says I have my life together, even if you ate Hot Cheetos for dinner and haven’t made a dentist appointment since the Obama administration. Whitening your teeth is one of the cheapest, fastest, most noticeable glow-ups you can buy.

The even better news? Crest 3D Whitestrips Professional Effects are 35% off for Amazon Prime Day, which runs July 8–11. That’s a full week of oops I added to cart behavior, and honestly, this one’s worth it. Prime members get the exclusive discount, fast delivery, and the ability to casually change their whole look by next weekend.

Each box comes with 20 treatments, and the effects last up to a year — yes, even if you’re still slamming iced coffee daily (guilty). The strips use the same enamel-safe whitening agent dentists use, and they actually stay put while you multitask. I’ve cleaned my kitchen, taken calls, and even flirted on FaceTime with them on.

Crest 3D Whitestrips Professional Effects use the same enamel-safe whitening ingredient dentists do, lifting up to 14 years of stains in just 20 days. Each box includes 20 treatments (plus two express strips for emergencies), and the adhesive actually stays on while you go about your life — no slipping, no drooling, no regret.

You’ll start seeing visible results in as little as 3 days, and the full effect lasts up to a year, even if your diet is 90% iced coffee and poor decisions. Just peel, stick, wait 30 minutes, and reveal a cleaner, brighter, hotter version of yourself.

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