Touch-Up (30 mins)
$50 · 45 mins
A touch-up exclusively for clients who've had a 40-minute or 1-hour treatment, bookable 2 weeks after, to refresh and maintain a bright, white smile.
Teeth Whitening in Toronto
Our teeth whitening treatments use only dental-grade, enamel-safe ingredients — including 40% hydrogen peroxide — to lift surface stains and deep discolouration for a brighter, whiter smile that can last up to 4 months. Choose from three treatment options at Beauty By Katia in Toronto to suit your needs.
From $50
Free consultations
Every skin type is different. Katia assesses your skin and recommends what's truly best for you — at no charge.
Free follow-ups
Your care doesn't end at the appointment. Follow-ups are always included so your results stay on track.
Aftercare for every client
Clear, personalised aftercare and ongoing guidance come with every treatment, for every client.
Why clients choose us
- Dental-grade, enamel-safe formula
- Visible results in a single session
- Removes surface stains and deep discolouration
- Results that can last up to 4 months
- Three options to match your goals and budget
What professional teeth whitening really is (and why it beats the drugstore aisle)
Professional cosmetic teeth whitening is a controlled, in-studio treatment that lifts both surface and deeper-set stains using a dental-grade peroxide gel, applied and supervised by a trained practitioner. At Beauty By Katia in Toronto, that means Katia tailors the strength and timing to your teeth rather than handing you a one-size-fits-all product.
Drugstore strips, pens, and tray kits use much weaker formulas designed to be safe for unsupervised home use, so they work slowly and often unevenly. A professional session uses a far more powerful gel along with even application and careful gum protection, which is how you see a visible change in a single visit instead of after weeks of nightly strips.
It's worth being clear about what this is and isn't. This is a cosmetic treatment that brightens the appearance of your natural teeth. It isn't dentistry and doesn't diagnose or treat any dental condition. If you have tooth pain, decay, gum problems, or other oral-health concerns, those should be seen by a dentist first.
How whitening actually works on your teeth
Whitening is a chemical process, not a scrubbing one. The hydrogen peroxide gel releases active oxygen that penetrates the tiny pores of the enamel and breaks apart the pigmented molecules that make teeth look yellow or dull. Once those colour compounds are broken down, your teeth look noticeably brighter.
Because it works chemically rather than abrasively, professional whitening can reach two different kinds of staining. Surface (extrinsic) stains sit on the outside of the enamel and come from things you eat and drink. Deeper (intrinsic) discolouration sits within the tooth and builds up over years. A dental-grade gel is one of the few cosmetic options strong enough to lighten both.
- Surface stains: the everyday film from coffee, tea, red wine, and similar staining foods and drinks
- Intrinsic discolouration: deeper, settled-in colour that develops gradually with age and habits
- What whitening doesn't change: the colour of dental work such as crowns, veneers, bonding, or fillings
What causes staining, and who gets the best results
Most everyday discolouration comes down to lifestyle. Coffee, black tea, red wine, dark sodas, and richly coloured foods are the usual culprits, and smoking or vaping adds a stubborn layer on top. Natural aging also plays a role, as enamel gradually thins and the tooth underneath shows through more.
The clients who tend to be thrilled with their results are those with healthy natural teeth and yellow, beige, or coffee-and-tea-toned staining, which responds beautifully to a peroxide gel. Because every smile is different, Katia offers a free consultation to look at your teeth honestly and tell you what to realistically expect before you book.
- Great candidates: healthy natural teeth with yellow or brownish staining from food, drink, smoking, or age
- Limited results: teeth that are naturally very grey-toned, since grey responds far less predictably than yellow
- No change on dental work: crowns, veneers, bonding, and fillings keep their original shade
- Best handled by a dentist first: any decay, cracks, gum irritation, or sensitivity that already bothers you
What to expect during your visit, step by step
Your appointment is relaxed and straightforward. Katia begins with a quick look at your teeth and a chat about your goals and any sensitivity, so the treatment is matched to you. This is also the moment to flag anything that should really be seen by a dentist instead.
Once you're comfortable, your lips and gums are protected and the dental-grade gel is applied evenly across the teeth. The gel is then activated and left to work for timed intervals, and depending on your chosen treatment this step may be repeated to build the result gradually and evenly.
At the end, the gel is removed and you can see the difference right away. Katia walks you through simple aftercare so your new brightness lasts as long as possible, and because every client gets free follow-ups, you're never left guessing about the next steps.
Results, how long they last, and easy maintenance
Most clients see a clearly brighter smile after a single session, and with good care the result can last up to around four months. How long it actually holds depends a lot on your habits, since a heavy coffee, tea, wine, or smoking routine will re-stain teeth faster than a lighter one.
Keeping your smile bright is mostly about gentle upkeep. Rinsing or sipping water after staining drinks, using a straw, and staying on top of regular brushing all help the colour last. When it naturally starts to fade, a quick refresh keeps things looking fresh without starting over.
Results are best presented as shades brighter rather than a guaranteed exact colour. Teeth are individual, so honest expectations matter more than a promised number, which is exactly what the free consultation is for.
Sensitivity, safety, and aftercare
Some temporary sensitivity after whitening is completely normal and usually settles on its own within a day or two. You might notice a little extra sensitivity to cold or a brief tingling feeling, which is a known, short-lived part of the process rather than a sign anything is wrong.
The single most important aftercare step is the white diet for the first 24 to 48 hours, while your teeth are most open to re-staining. During this window you simply avoid anything that could stain a white shirt and stick to pale, light-coloured foods and drinks. Doing this well protects the result you just paid for.
Throughout, the formula Katia uses is enamel-safe and dental-grade, applied with proper gum protection. That said, whitening is cosmetic, so anything that feels like a genuine dental-health issue, such as lasting pain or a problem tooth, should be checked by a dentist.
- For 24-48 hours, skip coffee, black tea, red wine, dark sodas, tomato-based sauces, and berries
- Stick to lighter options like water, milk, plain chicken or fish, rice, and pasta with light sauce
- Avoid smoking during the white-diet window, since it stains quickly and undoes fresh results
- If you tend toward sensitive teeth, a sensitivity toothpaste and lukewarm drinks can keep you comfortable
Is whitening safe for enamel and sensitive teeth?
When done properly, professional whitening is designed to brighten teeth without harming the enamel itself. The peroxide works inside the pores of the enamel to break down stains, and a controlled, professionally applied treatment with proper gum protection is very different from overusing strong products at home with no supervision.
If you already have sensitive teeth, you're not automatically ruled out, but it's exactly the kind of thing to raise at your free consultation so Katia can adjust the approach. Anyone with existing dental problems, untreated decay, or significant gum issues should see a dentist before whitening, since whitening is cosmetic and isn't a substitute for dental care.
Why clients choose Beauty By Katia in Toronto
Beauty By Katia is a Toronto studio run by Katia, a certified medical aesthetician who brings real care and attention to every appointment. Whitening here never feels like an assembly line, because the whole approach is built around your teeth, your goals, and your comfort.
Every smile is different, which is why Katia starts with a free consultation rather than assuming what you need. You get an honest read on what whitening can realistically do for your teeth before you commit, so there are no surprises and no overselling.
And the care doesn't stop when you walk out the door. Every client receives free follow-ups and aftercare guidance, so you always have support keeping your results bright. If you're searching for trustworthy, personalised teeth whitening in Toronto, that combination of expert hands and genuine follow-through is what sets the studio apart.
Natural White (40 mins)
$60 · 1 hr 15 min
A natural, bright result that removes surface stains and deep-set discolouration, leaving teeth looking radiant and healthy.
Ultra White (1 hour)
$85 · 1 hr 30 min
Our most powerful option — removes even stubborn stains for an ultra-white, dazzling smile several shades brighter in one session.
Teeth Whitening — FAQs
How much does teeth whitening cost in Toronto?+
At Beauty By Katia, teeth whitening starts at $50 for a touch-up, $60 for the 40-minute Natural White, and $85 for the 1-hour Ultra White treatment.
How long does teeth whitening last?+
Results can last up to 4 months depending on your diet and habits (coffee, tea, wine and smoking shorten it). A touch-up helps maintain your brightness between treatments.
Is the whitening safe for my enamel?+
Yes — we use only dental-grade, enamel-safe ingredients. Some clients experience temporary sensitivity, which settles shortly after treatment.
Will one session be enough?+
Many clients are happy after one session, but heavily stained teeth may need more than one treatment to reach the desired shade. Katia will advise at your appointment.
Does teeth whitening work on crowns, veneers, or fillings?+
No. Whitening only lightens natural tooth enamel, so crowns, veneers, bonding, and fillings keep their original shade. If you have a mix of natural and restored teeth, mention it at your free consultation so Katia can tell you what to expect.
Will teeth whitening hurt or make my teeth sensitive?+
Whitening shouldn't be painful. Some clients feel temporary sensitivity to cold or a brief tingling afterward, which is normal and usually settles within a day or two. If you already have sensitive teeth, let Katia know at your consultation so the approach can be adjusted.
What can I eat and drink after whitening?+
For the first 24 to 48 hours, follow the white diet: avoid coffee, tea, red wine, dark sodas, tomato sauces, and berries. Stick to pale foods and drinks like water, milk, chicken, fish, rice, and pasta with light sauce, and avoid smoking during this window.
How often can I whiten my teeth?+
Whitening isn't something to do constantly. Many clients refresh every few months as their result naturally fades, and a touch-up is available for clients who've already had a longer treatment. Katia recommends a sensible schedule for your teeth at your free consultation.
Is teeth whitening safe during pregnancy or breastfeeding?+
Cosmetic whitening is generally not recommended during pregnancy or breastfeeding as a precaution, simply because it's elective and there's limited research. We suggest waiting and checking with your doctor or dentist first, then booking once you're ready.
★★★★★
5.0 stars on Google
Loved by clients across Toronto — 55+ five-star reviews.
“Katia has been friendly and understanding from the beginning of my consultation to my appointments — my skin and acne scars have truly never looked better in just 3 sessions! Book with her to start your skincare journey.”
“Hands down, this was the best facial experience I've ever had. Katia was incredibly sweet, attentive, and so detailed with every step of my treatment. She made the whole appointment feel personalized and truly tailored to me. I left feeling refreshed and glowing. Highly recommend booking with her for your next skin refresh.”
“My experience with Katia was amazing from beginning to end. I found her on Instagram, sent her a pic of my face, and she correctly recommended the treatment that would best suit me. She is very knowledgeable and honest, and I really appreciate that. She made my first Zena algae peel experience very comfortable and the result is wonderful. I can't wait for my next appointment.”
