I tried the popular dentist-approved product that promises whiter teeth in six days - here's my brutally honest review

Daily Mail​

06-05-2025

Aussies fed up with years of stubborn teeth stains are swearing by a dentist-approved product for whitening their smiles, delivering sparkling results in just days.
Smilie has been shaking up the dental industry with its best-selling teeth whitening kit, which was crowned the best in Australia in 2023.
Developed by a team of dentists and backed by 15 years of research, the at-home treatment is suitable for everyone - even those with the most sensitive teeth can comfortably achieve results.
With hundreds of five-star reviews and more than 100,000 units sold, James was skeptical but curious to try the teeth whitening kit and see if it lived up to the hype.
And let's just say... he has saved himself a $1,200 trip to the dentist for a professional teeth whitening treatment.
The 36-year-old - who drinks two cups of coffee a day - was amazed with the results after using three gel whitening pens with the LED device over eight weeks.
'Don't expect magical results overnight, but I can confirm it works - my teeth are whiter and brighter than ever,' James told Daily Mail Australia.
'Having good teeth is important to me. They're still not exactly where I want them to be but they continue to get whiter every week and I've been impressed by the improvement.
'I know they're up against two cups of coffee a day so I'm glad I haven't had to give up that habit to see a real difference in their colour.'
The Sydney man said he never realised how stubborn the yellow stains on his teeth were until he compared his 'before' and 'after' pictures, taken eight weeks apart.
'I go to the dentist every six months to take care of my teeth - the dentist never brought up the stains so I assumed everything was fine,' he said.
'When I took the 'before' pictures, I was surprised at how yellow they were. I drink coffee every day so it was not unexpected - but they were worse than I ever pictured in my mind.'
For the past two months, he has been using the kit as part of his nightly routine before bed.
'You'll need to use it consistently to achieve your desired whiteness. I'm grateful I didn't have to give up coffee and still managed to get my teeth whiter,' James said.
'It took about a week before I noticed my teeth starting to change. After months of regular use, I finally got back to my original confident smile.'
James said one of the best things about the DIY teeth whitening treatment is that he can use it in the comfort of his own home.
'I like that the kit has everything I need - I can just apply the gel formula over my teeth, pop the whitening device in my mouth and watch some TV - and in 16 minutes, it's done and I can go about my night,' James said.
He rated the teeth whitening kit a stellar 4 out of 5 stars.
If you're curious to try, the best-selling starter pack may be just what you're looking for. The kit includes an LED whitening device, three whitening gel pens and a charging cable, and it's now on sale for just $97.75, down from $219
The gentle formula targets tough stains from coffee, tea, red wine and smoking - without causing any pain or sensitivity - promising a brighter, whiter smile in just two weeks of regular use.
While individual results may vary, 98 per cent of Smilie customers reported seeing visible results after just one treatment with the Boost Teeth Whitening Kit.
The teeth whitening kit is so popular that it won the prestigious 'Best Beauty Tool Award' of 2023 from Prevention Magazine.
To celebrate Smilie's fourth birthday, the brand has launched its biggest sale yet - with up to 60 per cent off storewide for the month of May.
Daily Mail Australia readers can get an extra 15 per cent off when applying the discount code DM15 at checkout.
Made with dental-grade ingredients, the six per cent hydrogen peroxide formula is a gel which also contains desensitisers and soothers, specifically designed to whiten teeth without pain and discomfort.
The brand is so confident in its teeth whitening kit that it offers customers a no-fuss 30-day money-back guarantee if they are not completely satisfied with the results.
Shoppers claim they can see a noticeable difference in the colour of their teeth after the first application.
For best results, the brand recommends repeating the treatment over six consecutive days and up to two weeks to achieve the ultimate whitening result.
So what's inside the Smilie Birthday Bundle? You'll get an LED whitening device, three whitening gel pens (30 treatments), on-the-go whitening pen, whitening strips and a USB charging cable.
Normally $376, the bundle is on sale for $145 - but Daily Mail Australia readers can snap it up for just $123.25 with the discount code DM15.
If you're curious to try, the best-selling starter pack may be just what you're looking for. The kit includes an LED whitening device, three whitening gel pens and a charging cable, and it's now on sale for just $97.75, down from $219.
The teeth whitening kit is incredibly easy to use in just three simple steps, alongside your daily toothpaste routine.
Simply apply a generous amount of the whitening gel evenly onto each tooth using the precision brush. Then, power on the LED device and place it in your mouth.
Sit back and relax for 16 minutes while the treatment works its magic. The light will automatically turn off to signal that your treatment is complete. Rinse your mouth and repeat the treatment for six consecutive days.
The award-winning kit has amassed more than 1,350 reviews - so it's not surprising that shoppers are racing to add these DIY treatments to their baskets
The award-winning kit has amassed more than 1,350 reviews - so it's not surprising that shoppers are racing to add these DIY treatments to their baskets.
'Noticed a difference after just a few days. The silicone mouthpiece adheres to your teeth really well and is comfortable to use. I had issues with stubborn stains on the side and it's helped massively. Exactly as I'd hoped for,' one customer said.
'I'm actually shocked at the difference. So happy, can't stop smiling,' another shared.
'I was planning on going to a wedding and wanted to whiten my teeth. I spoke with my dentist and nearly fell off the chair when I was told how much it cost. I purchased Smilie... So happy with the results and had loads of compliments. I visited my dentist for a routine check-up and clean. As she's checking... she stops and comes around to me to ask if I went to another dentist for whitening. The results are THAT good,' one revealed.
'I'm genuinely so impressed by the Smilie whitening kit. It's just awesome and my teeth look dramatically different to before I started. I'm 42 and have tried a couple of different whitening treatments over the years, including one which was incredibly painful and left my teeth sensitive for months. So I was hesitant to try something like this again... Stoked I did as it's made a huge difference,' another added.
To shop Smilie's teeth whitening kit sale, click here.