Teeth Whitening Powder – Clinically Proven – Dentist Approved

(77 customer reviews)


Use our signature peroxide-free powder to polish your teeth for a whiter, brighter smile without harsh ingredients.


Goodbye Stains

Smirkยฎ Teeth Brightening Powder is the gentle, safe, dentist-approved way to whiten teeth at home.

Remove even the toughest coffee, tea, or tobacco stains by applying Smirk Powder one to two times per week. Our signature mint powder isย safe even for sensitive teeth.

The cleansing power of green tea supercharges our micro-fine powder to create a brighter, whiter smile!

When used as directed each pot of Smirk powderย lasts for approximately 6 months.

For ultimate brightening results, pair Smirk powder with our gel & LED kit or our teeth whitening strips.

Why peroxide-free?

Bleaching agents like peroxide have an aggressive whitening mechanism called free-radical oxidisation, which has some detrimental side effects.

Among these side effects are sensitivity, irritated gums, and the loss of minerals in the tooth. Dentists limit these reactions with in-chair treatments, but at-home treatments are riskier.

We use Pentasodium Triphosphate (PT) as our primary whitening ingredient. The PT method is a safer alternative to peroxide because there are no free radicals released. As a result, no damage is done to the gums or enamel.

Additional information


6 Month Supply (40G), 12 Month Supply (80G)

77 reviews for Teeth Whitening Powder – Clinically Proven – Dentist Approved

  1. Warren Buckingham

    Just like 99% of every review left I thought this wonโ€™t work but wow was I wrong!!
    My teeth look about 3/4 shades lighter after 2 weeks to say Iโ€™m impressed is a understatement.

  2. Kathleen Clarke


  3. Kathy clarke


  4. Lee a (verified owner)

    Really impressed with the powder great stuff

  5. Jeanette (verified owner)

    Amazing product. Teeth looking whiter after 3 brushes xxx better than expensive dental treatments

  6. Mel

    Absolutely in love with this product ๐Ÿ˜

  7. Hayley

    This product is exactly what it says all the stains have gone from my teeth and ive only been using it for 3vweeks

  8. Sophie M (verified owner)

    Honestly I was embarrassed by my teeth. I had gum disease, alcohol, nicotine and coffee stains. I’ve only used this product 3 times and I’m already so much more confident with my teeth! It has lifted the minging yellowy stains and they look so much whiter already. I’m so happy with this product, can’t wait to see how white they are after continued use. My only regret is only buying the whitening powder and not the whole set! Love!

  9. Ellie Jenkins (verified owner)

    Only used a handful of time and have seen a MASSIVE difference!! Highly recommend!

  10. James (verified owner)

    Love the buy one get one free deal. Me and my wife are stocked up again for a year!!

  11. Steph (verified owner)

    Surprised, but actually worked. I’ve put a review on your Faceybook page :-):-)

  12. Elaine Casey

    Really pleased with this, the results after 2 weeks are amazing when you compare before and after pictures. Definitely recommend.

  13. Oliver Brittan (verified owner)

    Brilliant product. Me & my girlfriend love the whitening powder, noticed a massive difference. Recommend!

  14. Penny Judd (verified owner)

    I used this for the first time today and have a mix of real teeth and crowns. I could not believe the results just from the first clean. My teeth look a lot whiter and am looking forward to the next clean already. Fast delivery and great service. I will definitely be re-ordering, thank you Smirk.

  15. Ellie Appleby

    Amazing product!! Used a few times and can see a huge difference, very happy. Highly recommended!

  16. Mark

    First time use and teeth are smooth, just like a new dentist clean. Really looking forward to the next clean and sparkling teeth

  17. Michelle Oliva (verified owner)

    used 3 times already, My teeth feels clean and polished after every use. Just make sure not to have any dark colored/stain producing foods after your session. overall. cheap and impressive!. Good stuff! recommended.

  18. Has

    i have use both your product & coco charcoal .. and smirk have slightly better results than the latter…

  19. Paula hatfield (verified owner)

    Received this product todayโ€ wow just after the first use I seen a amazing difference. Always sceptical of trying new productsโ€™ but was amazed at the results. I will be re ordering this product and introducing it to my friends. Thank you so muchโ€ and I must add very quick delivery ๐Ÿ‘

  20. Nicola (verified owner)

    5*! Was very sceptical but thought why not! I’m a convert. Have never had what I would call bad teeth or teeth that aren’t white, they just aren’t celebrity bleached white and are more of an off white colour. I wanted to brighten up my teeth without chemicals and sensitivity. With the first two uses I noticed a massive difference. It lifted off the yellowy bits towards the gums and left my teeth feeling smooth and clean. I hope over the next few weeks it will actually make them much whiter. Already I see a few shades difference but I do want white white teeth. I hope I’ll see much more of a difference soon

  21. Anna (verified owner)

    Purchased the teeth whitening powder. Used twice and my veneers and bridges were brightened to their original whiteness. My natural teeth were brightened too and my teeth felt smoother on the surface and the mint gives the mouth a nice freshness too.

  22. Artur

    Actually works

  23. Carol

    Love it ! I can highly recommend this!!! My teeth are looking so much whiter ๐Ÿ’ž

  24. Sarah (verified owner)

    Ordered on Saturday received on Monday used it today for first time Iโ€™m very impressed it has brightened my teeth already in one use. Teeth donโ€™t feel sensitive after a lovely minty fresh flavour they feel sparkling! Definitely recommended ๐Ÿ˜

  25. Faz (verified owner)

    Was sceptical at first but wow arrived today , used today and I love it ! Polished like new ! Will be stocking up

  26. Mike Barnacle (verified owner)

    Brilliant, so surprised it really works on the first go. Genuine customer genuine results ๐Ÿ˜

  27. Alison wright

    Just received my smiles duo pack.
    I can honestly say IT WORKS!
    Thank you Simon for speedy, pretty delivery
    I shall definitely be ordering again and again…. ๐Ÿ˜๐Ÿ˜๐Ÿ‘๐Ÿป๐Ÿ‘๐Ÿป๐Ÿ‘๐Ÿป๐Ÿ‘๐Ÿป๐Ÿ’•๐Ÿ’•

  28. Adam Collins (verified owner)

    I bought this product based on all the good reviews and I can honestly say I agree I have only used it 3 times and it definitely makes your teeth feel and look very clean will definitely keep on using for more great results.

  29. Tina T (verified owner)

    I have just started using ๐Ÿ’œ Smiles very happy so far.

  30. Stacey

    Love this stuff, will buy again ๐Ÿ”ฅ

  31. Sarah (verified owner)

    Speedy Delivery!! Love the stuff!! It’s so good my brothers nicked it and I’m going to have to buy another!! Love it!! I was dubious to start with and instantly I saw a clearer set of gnashers. by my second use people were commenting how white my teeth were. Absolutely love this stuff and would highly recommend!!!

  32. Cosmina (verified owner)

    Very good product. Highly recommend the product .I โค๏ธ it.Thank you

  33. Lauren (verified owner)

    This product is amazing, faSt delivery after a couple of days. From just one use of the powder my teeth are already so much whiter! Highly recommend the product.

  34. Jon evans (verified owner)

    Really does work, can notice massive difference after just 1 go ๐Ÿ™‚

  35. Alice (verified owner)

    I LOVE this product!!!! Amazing results and I will defiantly be buying again!

  36. Liam mcDavid

    It’s pretty good

  37. Sophie Howarth (verified owner)

    I finally decided to give this a go. It arrived very quickly which was my first surprise. My second surprise was the difference after one use. I drink a lot of Diet Coke and had discolouring on one tooth and after the first use it drastically removed to the point where I had to inspect to see if it was still there. 5 stars for me!

  38. Leila (verified owner)

    Parcel arrived promptly even over christmas period. Loved the packaging and the text messages to let me know when the parcel was due to arrive. So professional. Only just used the powder the once and I think I can see a difference already. Cannot wait to use again later in the week. Really tenpted by the strips now too! Thanks Smiles Powder. Fab product and company

  39. sandy (verified owner)

    just received my parcel so excited to use speedy delivery to ๐Ÿ™‚

  40. Rebecca (verified owner)

    So happy I purchased! The stains on my teeth are all but gone after one use. So impressed!

  41. Georgina

    Brilliant stuff, used it twice and teeth looking whiter already!

  42. Natasha (verified owner)

    These products are AMAZING! My teeth are slightly stained due to smoking and my love of coffee/tea- I used the powder then the strips. My teeth are noticeably whiter and stains gone after 1 use!!! My teeth feel incredibly clean too! The products arrived within 2 days and were also nicely packaged. Definitely recommend Smiles

  43. James Watson

    Pretty good, took a few times to work!

  44. Petra

    Excellent! Speedy delivery and superb results ?

  45. Thomas (verified owner)

    Just arrived and think its brill ? can already see difference

  46. Likeyouwannaknow (verified owner)

    Used first time and seen an immediate change ? I smoke and my teeth are whiter within one 5 minute scrub!

  47. Ernest (verified owner)

    Yaaaay I got mine and I love it, I recommend it to all my friends ??

  48. Sanina

    Good ?

  49. Jemima

    Amazing packaging loved the purple envelope ? Works wonders I definitely recommend this product

  50. Lorraine (verified owner)

    Just got mine and one for my son ? Brilliant product highly recommend ?

  51. Louise (verified owner)

    Love this stuff!! I have used it twice and the coffee stains on my teeth are all but gone. I have very sensitive teeth and teeth whitening has been sore previously but the powder is gentle enough that I have had no issues. I can’t stop telling people how good this is!

  52. Liz (verified owner)

    First time use and could see a difference straight away. Very fast delivery also ๐Ÿ™‚

  53. Stephen (verified owner)

    Just Received The Parcel Which Was Amazingly Speedy By The Way ! Can’t Wait To Start Using The Powder !!

  54. Zlatina Vasileva

    I am impressed ? It’s really works xx love it!

  55. Kay (verified owner)

    Im hooked ? so good actually works and very good price, worth every penny ?

  56. K244 (verified owner)

    Great stuff ?

  57. Tracy

    ? Started using it this week…can see the difference…brilliant stuff

  58. Billy

    Actually works wow. ?

  59. Jimmy

    Pretty good ?

  60. Jermaine (verified owner)

    Love it ? Feel like I’ve been to the hygienist every-time I use it.

  61. Jodie

    I love this stuff, it’s amazing worth every penny!

  62. Brenda Martin

    Used just twice and noticed teeth look whiter!

  63. Jemima Stikelberry

    Just received my powder , used it once and I can definitely see a difference already. very impressed!

  64. Lee

    I’ve used this a number of times from my flat mate. Have noticed a difference. Will order myself

  65. c chandler

    Quite good

  66. Natasha Prior

    I’ve never had my teeth professionally whitened as its too expensive. I feel like this powder has done the same job as professional whitening with minimal effort, no damage to my teeth & at a fraction of the price. Will definitely be recommending to all my friends! Xx

  67. Vickie

    Amazing could see results straight away. Did not think it would be so obvious as went to the dentist to have them cleaned only the week before fantastic results

  68. Ninja (verified owner)

    Teeth feel squeaky clean ?

  69. Caroline Hemming

    This stuff is fabulous! I paid over ยฃ300 for a dentist to whiten them and this worked better!

  70. Sophie Cartwright

    Fab product best I’ve used everyone must try it

  71. Emma green

    Brilliant powder, saw results instantly! Will buy again.

  72. Louise Smilie

    Bought this on whim and I’m so glad I did. It last ages and ages. My husband and I have shared it and there’s still loads left.

  73. Eleanor chalmers

    This stuff actually works! Very surprised as I’ve tried numerous products before.

  74. Devon M

    WOW!! Results are amazing, 6 months supply in each pot, Bargain!! Thank you.

  75. Hollie R

    Sceptical at first but really works… thanks!

  76. Emily

    This is brilliant! Tried lots of others and this really does what it says on the tin.

  77. Teresa

    I use this every single week without fail, sometimes I’m a bit naughty and use it 2 times a week! I love it!!

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Calcium Carbonate, Sodium Dodecyl Sulfate, Strontium Chloride Hexahydrate, Camellia Sinensis Leaf Extract & Aqua & Glycerine (Green Tea), Mentha Piperita (Peppermint), Saccharin, Pentasodium Triphosphate & Allantoin.


  • Use Smirkยฎ Teeth Whitening Powder once or twice a week before using your usual toothpaste.
  • Dampen your toothbrush and dip it into the pot so that bristles are coated in the powder.
  • Brush each quarter of your mouth for 30 seconds, using small circular motions on the surface of your teeth. Avoid your gums.
  • Rinse your mouth and brush with your regular toothpaste, as usual.

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