Complete Guide to Teeth Whitening: In-Clinic vs At-Home

Almost every patient asks the same question at some point: whitening strips from the pharmacy, or the in-chair treatment? The honest answer depends on how much change you want and how patient you are.

In-clinic whitening uses a much higher concentration of bleaching gel activated under a controlled light, so most patients see 4-6 shades of improvement in a single one-hour visit. It's the right choice before a wedding, an important event, or simply when you want a visible result without weeks of waiting.

At-home kits, including the custom trays we fit in-clinic, use a gentler gel worn for shorter periods over 1-2 weeks. The results are slower but very close to the in-clinic outcome, and the custom tray fits your teeth exactly, which reduces the gum irritation you get from generic pharmacy strips.

Either way, whitening works best on natural teeth — it won't change the colour of existing crowns, veneers or fillings, so if you have visible dental work in your smile line, mention it during your consultation so we can plan around it.