We did notice some long-term discomfort over time, though, possibly because we felt like it was pretty abrasive. That created something of a catch-22 for us in testing—when we used the toothpaste, it whitened our teeth a couple of shades, but when we stopped using the toothpaste (because of sensitivity), we noticed that our teeth began yellowing and staining again almost immediately. The product felt like we needed to use it every single day to maintain an improved and brighter teeth shade. However, it noticeably caused teeth sensitivity that discouraged us from using it every day. To be registered with the Consejo Dentista, dentists must possess a degree from a recognized Spanish university and meet certain standards of hygiene and level of facilities , although the organization does not actually regulate them. Dentists must also register in their nearest large city. The product promises to remove up to 10 years' worth of stains and yellowing, and this variety features extra grip to ensure they stay in place. That grip was something we noted in our experience, too, plus the fact that we never experienced any sensitivity or discomfort (although that may not be the case for everyone!). Dr. Marashi is also a fan, lauding both the affordable price and the good results they deliver. Still, he does note that compliance with any at-home product is usually the main issue, so you’ll need to use these every day (for the entire duration of the two-week treatment cycle) to see the best results. Initially, we couldn’t leave the tray in for the recommended 15 minutes because it was so uncomfortable. But over time, we did get used to it. The best part was that our teeth whitened. Even though we only left it in for about eight minutes, our teeth went up a full shade. It hurt, but the pain was worth it in our eyes. We also started with the highest concentration possible, which we wouldn’t recommend if you have sensitive teeth or have never whitened your teeth before (in that case, you may want to start with the lowest concentration and work your way up from there). Truly a classic, you really can’t go wrong with these easy-to-use strips. They have the American Dental Association's (ADA) seal of approval, which was granted to them in 2017. To drive home how major that is, it's worth mentioning that it's the first product to earn the ADA seal in the Home-Use Tooth Bleaching Products category, according to the ADA.

Sarah Bradley has been writing health content since 2017: everything from product roundups and illness FAQs to nutrition explainers and the dish on diet trends. She knows how important it is to receive trustworthy and expert-approved advice about over-the-counter products that help you manage everyday conditions. We kind of call it the white diet," Dr. Zappia says. "Anything that will not stain." So, cheese, yogurt, fresh fruits with the exception of berries, vegetables, pasta, and other foods that won't easily darken your teeth are all great choices.The national healthcare system in Spain ( el sistema national de salud) provides high-quality care in hospitals ( hospitales) and medical centers ( centros de salud) throughout the country. As a result, around 90% of Spanish residents use the public services. While most dental care in Spain isn’t covered by the state, there are two exceptions. Children’s dental care Throughout the testing, we considered whether we were able to apply the product and go about our day as usual, how much whiter our teeth were from start to finish, whether we experienced any sensitivity, and if we thought the kit was an overall good value based on its retail price and the results it delivered.

You shouldn’t head into a whitening toothpaste expecting the same results as whitening strips or a kit with gels and trays. But a whitening toothpaste like this one from Opalescence can help whiten teeth or help maintain a whiter smile over time. We rated it high for convenience and comfort, mostly because it functioned like normal toothpaste. We liked that there was no learning curve to the application process; it was easy to work into our daily routine, and it didn’t cause any initial discomfort. Generally, though, Dr. Izhaky says strips are safe to use twice a day for up to two weeks for a maximum of 30 minutes at a time. Depending on the ingredient percentage, she adds, gels can be used for one to two hours per day for two weeks as well.

Unfortunately, the national healthcare system does generally not cover dental care. This means that going to the dentist in Spain is not free, with the exception of children under 15 and emergency treatment for adults. If you need routine treatment for your teeth you will have to pay for dental treatment. Alternatively, you can take out private dental health insurance. Each kit comes with three wands of Snow's whitening gel as well as an extra-strength version in addition to the LED mouthpiece. The best part? It's safe for use by those with sensitive teeth, braces, bridges, caps, crowns, and veneers. It didn’t trigger any sensitivity or pain (or bad aftertaste for us in the least), and it did brighten our smile. To help you narrow down the list of whitening kits that will meet your needs, we tested the best options on the market. We tried out dozens of whitening kits, following each brand's specific instructions. Throughout the test, we paid close attention to how easy it was to use the product, whether we experienced any discomfort or teeth sensitivity, and how effective the product was in whitening our teeth. We then took careful notes on the appearance of our teeth before, during, and after the whitening process.An orthodontist from our Medical Expert Board reviewed the contents of this article for medical accuracy surrounding dental hygiene and the efficacy of active whitening ingredients. Overall, the whitening results were significant enough to make us recommend this product as a good choice, especially since it didn’t cause any pain or discomfort and is priced within the average range for a whitening kit. Given how much we know professional whitening costs, and remembering the pain and sensitivity we've had with other whitening products in the past, we absolutely think this is worth the price and the inconvenience for a couple of weeks. Pens deposit much less product onto your teeth, so can be used more frequently, but you should still aim for one to two applications per day (and limit use to one or two weeks at a time or as needed). Trays are commonly recommended for up to 30 minutes, and light kits are usually left in place for shorter periods of time, often less than 10 minutes. The duration for both varies but is usually no more than two or three weeks in total.

Finally, we were surprised how much brighter our teeth became in testing this product—we felt the kit more than earns its place on our list and is well worth its cost. We even think it may have been more effective than previous whitening treatments we've done in the past at the dentist's office. Crest is no stranger to the at-home whitening world, but this latest innovation really is a game-changer. It takes the same beloved strips the brand is best known for and amps up its effects with blue light technology to provide unmatched results lasting up to 36 months. For 10 days, you wear the strips for an hour, then hold up the light device to the strips for another 10 minutes (five minutes each on the top and bottom). The light boasts the same technology found in dentist’s offices, which helps the hydrogen peroxide in the strips better penetrate the tooth enamel and ultimately removes yellow stains and leads to whiter teeth. And yes, it really works. We began to see a brightening effect by day five, and by day 10, our smile was noticeably a few shades lighter, while any bothersome stains had faded significantly. Per Dr. Kalasho, common whitening ingredients that work well for at-home use are carbamide peroxide and hydrogen peroxide. For carbamide peroxide, look for a percent of around 35 percent; for hydrogen peroxide, you’ll want something with a 10 to 15 percent concentration.

The main reason to opt for a whitening pen and not a more comprehensive kit is convenience, and this pen by AuraGlow is nothing if not convenient. You won’t get mega-white brightening results here—we noted it lightens maybe a shade, at most—but you will get an easy and painless application process and the ability to easily whiten minor stains on the go.