Award-winning teeth whitening powder at lowest price in Amazon's sale (2025)

I recently sought a quote from my dentist for teeth whitening, and at £300, I promptly returned home to search for the top-rated home solutions. MySweetSmile was a brand that consistently appeared in my research, particularly for its dentist-approved formulas and effective results - and now, it's on sale.

As part of Amazon's Spring Sale, which kicked off today (Tuesday, March 25), MySweetSmile is offering a 30% discount on its award-winning teeth whitening and oral care range. The price reduction has been applied to a variety of products, including gum serums, flavoured toothpastes and arguably their most sought-after product, the Teeth Whitening Powder.

MySweetSmile's Teeth Whitening Powder has held the title of Amazon's number one best-selling product in the teeth whitening category for two consecutive years, and has garnered an impressive reputation among shoppers. It works to remove deep stains from coffee, tea, and wine using a peroxide-free, non-abrasive formula, and helps prevent new ones from forming so your smile remains brighter for longer.

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Typically, a tub costs £24.99, but as part of the sale, it has been reduced to £17.49. This is the lowest price we've seen the product listed on Amazon, having previously been £18.74 around Christmas.

It has a 3.8-star rating on the retailer's website, based on over 5,000 customer reviews. One reviewer gave it five stars and wrote: "I use this and after 2 or 3 days I noticed my teeth getting brighter and whiter and that improved again to the point my partner asked if I'd had my teeth whitened . My teeth feel clean and smooth," reports the Mirror.

Another reviewer added: "I was sceptical when first purchasing this product but safe to say after a month of daily use it really does work. I use the powder after I have cleaned my teeth with toothpaste and I am very pleased with the results. The initial taste of the powder took a little to get used to but with the results I've received with only one months use, I can deal with the bitterness. I'm excited to see more results."

However, one user was less impressed, writing: "Found it really left teeth feeling very clean. Not sure if it actually whitened my teeth or not. I think it was worth a try."

A fourth reviewer shared their success story, saying: "As an avid coffee drinker, I had a noticeable stain on one of my teeth that made me quite self-conscious. I was even considering a visit to the dentist to have it removed. However, I saw this product on Instagram and decided to give it a try, hoping for the best,

"To my surprise, it completely removed the stain after just one use ! This product genuinely works, and I couldn't be happier with the outcome. I plan to continue using it as recommended to maintain my teeth in great condition."

There are a plethora of other whitening powders on the market, including Dr Dent's Crystal X Teeth Whitening Powder, which is currently available on Amazon for £12.95 for a six-month supply. Meanwhile, the Spotlight Oral Care Teeth Whitening PAP Powder was priced at £30 but is now only £24 at Boots.

However, what attracted me most to MySweetSmile's products wasn't just the enticing price reduction, but also the fact that they're backed by clinical trials and dentist approval. The brand has even bagged the IndyBest award for Best Teeth Whitening Brand in both 2023 and 2024, and boasts over one million customers globally and an 'Excellent' rating on Trustpilot.

If you're not keen on the powder, the discount also applies to MySweetSmile's PAP Teeth Whitening Strips, now priced at £17.49, which promise quick, irritation-free whitening in 'just seven days', as well as the Precision Teeth Whitening Pen - a handy solution for tackling stubborn stains on the move. Usually retailing at £19.99, it's currently down to £13.99.

For those who are more concerned with overall oral health, MySweetSmile's Enamel Care Serum and Hyaluronic Gum Serum offer advanced enamel strengthening and gum hydration benefits. The latter is designed to provide deep hydration, alleviate inflammation, and fortify gum tissue, aiding in the prevention and treatment of gum disease.

Meanwhile, the brand's range of flavoured toothpastes - including Fresh Mint, Strawberry, and Mango, available in both fluoride and fluoride-free options - work to strengthen enamel, fight plaque, and freshen breath. Another popular brand offering flavoured toothpaste is HiSmile, whose pastes, such as Mango Sorbet and Red Velvet, are currently half price at Boots, coming in at £4.50, compared to MySweetSmile's £8.74 formula.

This Amazon discount is only available from March 25 to March 31 at 11:59pm, so for anyone looking to achieve a brighter smile or improve their oral hygiene routine without breaking the bank should consider that some of these products are the cheapest we've seen them. You can shop the MySweetSmile sale on Amazon here.