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Most Teeth Whitening Causes Sensitivity. Here's Why Mine Doesn't.
After 15 years in dentistry, I got tired of seeing patients hurt by poorly made whitening products. So I developed one that actually works – without the pain.
Dr. Daniel Tankard
Dentist & Founder of Smilie
Read my story
As Seen In
As a practising dentist with over 15 years of experience, I've dedicated my career to helping people achieve healthier, more confident smiles. But there's one conversation I have almost every single week that frustrates me.
A patient walks in, excited about whitening their teeth, but terrified of the pain. They've heard horror stories. They've tried cheap strips from the chemist that left their teeth aching for days. They've Googled "is teeth whitening safe" and found a hundred conflicting answers.
So they do nothing. They keep hiding their smile in photos. They keep feeling self-conscious in meetings, on dates, at their kids' school events. And it breaks my heart – because it doesn't have to be this way.
"Dr. Tankard, I want whiter teeth – but I'm terrified it'll hurt. I tried whitening strips once and couldn't eat for two days. Is there anything that actually works without the sensitivity?"
I used to recommend in-chair whitening treatments. They work – but they cost $600 or more per session, they still cause sensitivity for many patients, and most people simply can't justify the expense. The at-home alternatives? Most of them are worse. Unregulated formulas, harsh chemicals, no desensitising agents, and zero clinical oversight.
That's why I developed Smilie. Not as a business venture – but as a genuine solution to a problem I was seeing every day in my practice. I wanted to create something I could confidently recommend to my own patients, my own family, my own friends.
What I See in My Practice
0%
of patients who've tried at-home whitening report experiencing sensitivity or pain
0%
say sensitivity is the #1 reason they stopped whitening or never tried again
$600+
average cost of a single in-chair whitening session at a dental clinic in Australia
I started asking harder questions. Why do most whitening products cause sensitivity? Is it inevitable? Or is it a design flaw that the industry has simply accepted?
The answer changed everything I thought I knew about at-home whitening – and it led me to develop a fundamentally different approach.
Why Most Whitening Products Cause Pain
Here's what most companies won't tell you: sensitivity from whitening isn't a side effect – it's a design failure. Most whitening products use high concentrations of hydrogen peroxide without any protective agents. The peroxide penetrates your enamel to break down stains, but it also reaches the nerve-rich dentin layer underneath. That's what causes the sharp, shooting pain.
Cheap whitening strips are the worst offenders. They use a one-size-fits-all approach – the same harsh formula pressed against your teeth with no customisation, no barrier, and no protection. It's like using sandpaper when you need a gentle polish.
When I set out to create Smilie, I knew the formula had to solve this problem at its root. Not mask the pain afterwards – prevent it from happening in the first place.
The Smilie Difference
Smilie's formula includes Potassium Nitrate – a clinically proven desensitising agent used by dentists worldwide. It works by calming the nerve endings in your teeth before the whitening agents get to work. This means you get professional-grade whitening results without the pain that comes with most at-home products.
Combined with our dental-grade LED light technology and custom mouth tray, the formula delivers even, consistent results across every tooth – no patchiness, no missed spots, no guesswork.
"But Does It Actually Work?"
I understand the scepticism. The whitening market is flooded with products that promise the world and deliver nothing. Instagram is full of influencers holding up whitening pens they've never actually used. It's exhausting trying to figure out what's real.
Here's what I can tell you as a dentist: Smilie uses the same active whitening agents we use in professional dental clinics. The difference is the delivery system. Our LED light accelerates the whitening process, allowing us to use a lower concentration of peroxide for a shorter time – which means less exposure to your enamel, less irritation, and still dramatic results.
98% of our customers see visible results after their very first 16-minute treatment. Most achieve 4-8 shades whiter within 6 days. And with over 5,000 five-star reviews, the results speak for themselves.
"I've recommended Smilie to hundreds of my own patients. It's the only at-home whitening product I trust enough to put my name on – because I developed it to meet the same standards I hold in my clinic."
The Results Speak for Themselves
I could talk about the science all day, but what matters most is whether it works in the real world. Here are real results from real customers – no filters, no editing, just genuine before-and-after photos.
Actual customer result after 6 days of treatment
98%
Saw visible results after 1st treatment
4-8
Shades whiter in just 6 days
5,000+
Five-star reviews
Customer Results Gallery
Your Questions, Answered Honestly
These are the real concerns I hear from patients every week. Here are my honest, professional answers.
"Will this damage my teeth?"
Dr. Tankard's Answer
This is the most important question, and I'm glad you're asking it. Smilie uses a dentist-formulated, enamel-safe concentration of hydrogen peroxide – the same active ingredient used in professional dental clinics. We've specifically calibrated the strength to be effective without being aggressive. Your enamel is safe. I wouldn't put my name on it otherwise.
"Will it hurt? I've had bad experiences before."
Dr. Tankard's Answer
If you've experienced sensitivity from whitening before, you're not alone – and it's not your fault. Most products skip the desensitising step because it's expensive. Smilie includes Potassium Nitrate, a clinically proven nerve-calming agent that works during the whitening process. The vast majority of our customers report zero sensitivity. If you do experience any discomfort, simply space out your treatments – and remember, our 30-day money-back guarantee means there's no risk.
"Does at-home whitening even work?"
Dr. Tankard's Answer
I understand the scepticism – there are a lot of gimmicks out there. Smilie uses professional-grade ingredients combined with LED light technology to accelerate results. 98% of our customers see visible whitening after their very first treatment. The LED light isn't just for show – it activates the whitening gel and speeds up the chemical process, giving you results that cheap strips simply can't match.
"What if it doesn't work for my teeth specifically?"
Dr. Tankard's Answer
Every smile is different, and I respect that concern. Smilie works on natural teeth regardless of the type of staining – whether it's from coffee, tea, wine, or ageing. It won't whiten crowns, veneers, or fillings (no whitening product can), but it will whiten all your natural teeth evenly. If for any reason you're not happy with your results, our 30-day money-back guarantee has you covered.
"There are so many options – how do I choose?"
Dr. Tankard's Answer
You're right, it's overwhelming. Strips, pens, toothpastes, LED kits – they all claim to work. Here's my professional take: whitening toothpastes are too weak to make a real difference. Strips are harsh and uneven. Pens are inconsistent. A proper LED kit with a custom tray and dentist-formulated gel is the gold standard for at-home whitening. That's exactly what Smilie is.
"What if I use it wrong?"
Dr. Tankard's Answer
Smilie is designed to be foolproof. Apply the gel to the tray, pop it in, press the button on the LED light, and wait 16 minutes. The light has an automatic timer – it turns off when your session is done. There's no way to overdo it in a single session. I've made it as simple as possible because I know not everyone is comfortable with dental procedures.
"Is this actually safe and legitimate?"
Dr. Tankard's Answer
I'm a registered Australian dentist. I developed Smilie in my own practice, tested it on my own patients, and I use it myself. Every ingredient is dental-grade and compliant with Australian safety standards. We've won Prevention Australia's Beauty Award. This isn't an influencer cash-grab – it's a clinical product developed by a dentist who got frustrated with the alternatives.
"What if the results look fake or uneven?"
Dr. Tankard's Answer
Nobody wants the 'Ross from Friends' look. Smilie delivers natural-looking results because the custom mouth tray ensures even coverage across every tooth. The whitening is gradual and controlled – you won't wake up with blindingly white teeth overnight. You'll notice a natural brightening that looks like you've always had great teeth.
"Is it worth the money?"
Dr. Tankard's Answer
Let me put it in perspective. A single in-chair whitening session costs $600 or more. Smilie gives you 30 treatments for $99 – that's $3.30 per treatment. Even if you only use half the kit, it's still a fraction of the cost of one dental visit. And unlike in-chair whitening, you can top up your results whenever you want without booking another appointment.
"It seems like a lot of effort."
Dr. Tankard's Answer
16 minutes. That's it. Pop in the tray, turn on the LED light, and go about your evening – watch TV, scroll your phone, make dinner. The light turns off automatically when it's done. Most of my patients tell me it's the easiest part of their routine. Six days of 16-minute sessions and you'll see a dramatically brighter smile.
What You Get with the Smilie Boost Kit
I designed this kit to give you everything you need for professional-grade whitening at home – nothing more, nothing less. No confusing add-ons, no upsells, no subscription traps. One kit, 30 treatments, real results.
Dentist Developed
Smilie Boost Kit
Offer ends in:
30-day money-back guarantee · Just $3.30 per treatment
Sensitivity-Free
Potassium Nitrate formula
16 Minutes
Per treatment session
4-8 Shades
Whiter in 6 days
Award-Winning
Beauty Awards Winner
Discussion (5 comments)
Real questions from real people – answered directly by Dr. Tankard.
Dr Tankard, I tried whitening strips from Coles last year and my teeth were in agony for 3 days. I literally couldn't drink cold water. How is Smilie any different? I want to trust this but I'm genuinely scared of going through that again.
Jenny, what you experienced is unfortunately very common with drugstore strips – they use harsh peroxide concentrations without any desensitising protection. Smilie is fundamentally different because we include Potassium Nitrate directly in the gel, which calms the nerve endings in your teeth during the whitening process. I developed this formula specifically for people like you who've been burned before. And with our 30-day money-back guarantee, there's genuinely zero risk in trying it.
Honest question – is $99 actually worth it when I could just get whitening done at the dentist? At least then I know it's being done properly by a professional.
Great question Sarah. In-chair whitening typically costs $600+ per session and still causes sensitivity for many patients. Smilie uses the same active ingredients we use in clinics, but the LED light allows us to use a gentler concentration over a slightly longer period – same results, less irritation. Plus you get 30 treatments, so you can maintain your results for months. The maths: $3.30 per treatment vs $600+ per visit.
Okay I was SO skeptical. Another whitening kit promising miracles? But I've been using it for 2 weeks and my teeth are genuinely 4 shades whiter. Zero sensitivity. My husband noticed before I even mentioned it. I'm buying one for my sister's birthday. 😭
Frequently Asked Questions
More questions from patients – answered with full transparency.
A Final Word from Your Dentist
I created Smilie because I believe everyone deserves to feel confident in their smile – without the pain, the confusion, or the ridiculous price tag of in-chair treatments.
If you've been putting off whitening because you're worried about sensitivity, cost, or whether it'll actually work – I've spent 15 years developing the answer. Try it risk-free. If you're not thrilled, you get your money back. No questions asked.
– Dr. Daniel Tankard
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Save $120 – was $219, now just $99