The Independent's journalism is supported by our readers. When you purchase through links on our site, we may earn commission. Why trust us?ExtrasIndyBestFashion & BeautyBeautyThis £25 teeth whitener gave me a “bright and white smile” in just two weeksAs far as teeth whitening treatments go, this powder perked up my pearly whites This inexpensive powder is a quick way to whiten your teeth (Lucy Smith/The Independent)Between morning coffees, the occasional glass of red and tumeric-rich dinners, keeping teeth looking bright isn't always easy. While an at-home whitening kit can be an effective way to tackle staining, not everyone wants to commit to LED trays, lengthy treatment plans or peroxide-heavy formulas. For many, a good whitening toothpaste feels like the more realistic option, but the results can often be subtle, leaving plenty of products caught somewhere between convenience and effectiveness.Somewhere in the middle, you’ll find Mysweetsmile’s teeth whitening powder. Designed to slot into your existing brushing routine, it promises to lift surface stains without the fuss of traditional whitening systems or the complexity that often comes with them. Intrigued by its simple approach, I swapped it into my daily routine over two weeks to see whether it could noticeably brighten my smile, without adding another high-maintenance step to my morning and evening rituals. Here's how I got on.Read more: 8 best electric toothbrushes, testedApplication PowderTime of day to apply AnyDuration Four minutesSensitivity level ZeroWhy we love it Professional backingEasy to integrate into routineNo sensitivityFast resultsShow moreWhat immediately caught my eye about MySweetSmile’s teeth whitening powder is it’s approved by dentists. A predominant concern of mine when it comes to teeth whitening treatments is the negative effect it can have on teeth, so to have this professional backing instantly set my mind a bit more at ease.Being 100 per cent fluoride- and peroxide-free, it has a non-abrasive nature, with the active ingredients including pentasodium triphosphate and calcium carbonate to tackle those dark stains that settle on our pearly whites.The brand claims its teeth whitening powder helps remove built-up stains, yellowing and plaque caused by food, drink and even smoking. It makes sense as teeth/oil pulling (often with coconut oil or bicarbonate of soda) is a common method to remove colouring that has accumulated on teeth, so I was keen to put this method to the test.Inundated with whitening strips and now the growing-in-popularity LED devices, I thought the powder might be messy to use, in comparison. However, due to the size of the tub and the fact that you wet your toothbrush before dipping it into the powder, it stays intact in the tub.Read more: Best water flossers and Waterpiks, tested The process involves brushing for four minutes (before brushing your teeth with your regular toothpaste), so it is understandable that, for some, this might be tiresome. However, I found it to be an easy treatment to integrate into my nighttime skincare and oral hygiene routine, so I didn’t find it to be a huge fuss. Plus, many strips and LED devices require you to keep the products on your teeth or inside your mouth for that amount of time or longer – so this was not a bother at all. Furthermore, the treatment is recommended twice a week, as opposed to daily or for a few consecutive days.A key factor when testing was sensitivity, as I’ve had issues with that when testing strips and other teeth whitening treatments. Luckily, there were no issues of sensitivity with My Sweet Smile’s powder – thanks to the inclusion of strontium chloride.I actually noticed a slight difference in discolouration on some of my more stubbornly stained teeth (the canines) within a week of using the treatment, but noticed a brighter smile overall after a couple of weeks. The fast result and ease of use of the powder made me feel I could continue using this treatment whenever I felt the need for a natural glow-up.Back to topIs the MySweetSmile teeth whitening powder worth it?If you're after dramatic, Hollywood-style whitening, an LED kit or professional treatment will still deliver the biggest transformation. But for tackling everyday staining from coffee, tea and red wine, MySweetSmile’s power earned my favour, straddling effectiveness and ease of use perfectly. I noticed a more bright and white smile within two weeks, without any of the sensitivity I've experienced with other whitening products, and the powder slotted seamlessly into my existing routine. At £25, also, it's an affordable, low-maintenance option that I'd happily keep on hand for regular top-ups rather than reaching for harsher alternatives.How was the MySweetSmile teeth whitening powder testedTo get a clear sense of how well MySweetSmile’s teeth whitening powder performs, I put it through its paces over several weeks. I tested it on freshly brushed teeth, which are naturally a little more porous and tricky to whiten. Here’s what I focused on while testing:Ease of use: How simple the application felt, from wetting the brush to brushing for the recommended four minutes, and whether it fit comfortably into my routine. Results: I tracked how quickly I noticed a difference in stain reduction and overall brightness, including tougher areas like the canines. Sensitivity: I monitored for any discomfort, pain or irritation during and after use. Consistency and mess factor: I assessed how easy it was to dip the brush and avoid spilling powder everywhere. Convenience: I looked at whether the treatment felt travel-friendly and manageable for long-term use. Value for money: I weighed the cost against results, ease of use and how it compares to pricier alternatives like LED kits or whitening strips. How to use teeth whitening powder?Different powders and brands will all come with their own instructions. Generally, steps will involve dipping a damp toothbrush into the powder and brushing your teeth for the recommended time, usually around four minutes. After this, you’ll rinse thoroughly and use the treatment one to two times per week, depending on the brand’s guidance. Why you can trust IndyBest reviewsLucy Smith is one of The Independent’s senior shopping writers and somewhat of a teeth whitening aficionado. Not only is she responsible for IndyBest’s main guide to the best teeth whitening kits, but she’s covered a number of whitening brands independently, too – from Gleam to SmilePro. What’s more, Lucy is currently in the process of testing a whole suite of electric toothbrushes and, as a result, has spoken to a number of dentists to feed her expertise. Read more: 9 best kids’ toothbrushes for gentle brushing on little teeth