Nothing perks up a beautiful face like dazzling white teeth, but professional whitening treatments can be costly and painful. Never fear! InStyle  has discovered eight easy-to-use treatments that won't hurt your mouth or your wallet.
Unfortunately, one of the side effects of our sleep-deprived (and consequently, coffee-obsessed) culture is discolored teeth. With professional teeth cleaning often costing upwards of $400, budget-friendly home solutions for a whiter smile are plentiful — but which ones actually work?
Thankfully, the at-home whitening business has grown to include virtually every possible method (from chewing gums, to strips, to dentist-worthy kits), with many tackling various dental needs (sensitivity, veneers, etc.).
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Crest 3D White Whitestrips 1-Hour Express
The trailblazers of the at-home whitening trend, Crest's white strips  ($55) provide some of the easiest and proven effective whitening solutions. Simply adhere strips to teeth, remove after an hour, and witness the full transformation after a week of twice-daily use.
Go Smile Sonic Blue Teeth Whitening System
Go Smile's toothbrush  ($129) is the first of its kind, incorporating a blue light into its fast-acting system. The blue light penetrates beneath the surface enamel, ridding old, set-in stains that many whitening systems miss.
Supersmile Professional Whitening Toothpaste
Add brightening power to your regular routine with Supersmile's toothpaste  ($21), which even tackles stains on typically stubborn veneers, caps, and dentures.
GLO Brilliant Personal Teeth Whitening Device
The light and heat of GLO's whitening system  ($199) allows for longer-lasting, professional-quality results and custom-tailored color (up to eight shades after use).
Luster Now! Instant Whitening Mouth Rinse
For a speedy solution that brightens teeth and combats bad breath, swoosh Luster's mouth rinse  ($7) for 30 seconds twice a day, and behold immediate results.
Colgate Optic White Toothbrush and Built-In Whitening Pen
This overachieving toothbrush  ($13) includes stain-removing bristles designed to whiten teeth — even prior to any whitening application. After brushing, remove the whitening pen stored within the brush and apply quick-drying gel to teeth.
Philips Zoom! Whitening Pen
For a quick touch-up to maintain color between whitening treatments, apply Zoom!'s Whitening Pen  ($22).
Go Smile AM/PM Luxury Toothpaste
Go Smile's toothpaste duo  ($30) offers a solution to the overpowering taste found in many whitening toothpastes with its aromatherapy-inspired flavors — revitalizing citrus and mint for the morning, and calming lavender and vanilla for evening.