Before & After
Frequently Asked Questions
🩺 Are the Kits Officially Approved?
Yes, our kits are fully approved by the Food & Drug Administration (FDA) of America. The formula and the manufacturing process are certified 100% safe every two years — and have been for the past 16 years. We’re also approved by all UK dental authorities, ensuring top-tier safety and reliability.
Our kits combine true effectiveness and safety — offering the optimum whitening strength without the risk. Because your health and confidence come first.
✨ How White Will My Teeth Get?
Every smile is unique — but most users notice up to 4 shades lighter after completing their Backilly treatment. You’re in control of your results: stop when you reach your perfect shade of natural brilliance.
Whether your teeth are mildly stained or heavily discolored, the WOW factor will always show — creating a visibly brighter and more confident smile.
🌿 How Long Do the Results Last?
Results can last up to 5 years — depending on your lifestyle and diet. Foods and drinks like coffee, tea, and wine can gradually dull the shade, but with minimal upkeep, your bright smile can last for years.
For smokers or heavy coffee lovers, we recommend a simple top-up every few months to maintain that Backilly glow. It’s easy, affordable, and always effective.
⏳ How long does the Gel last?
The gel has a shelf life of 2 years, so is totally cost effective. This saves money in the future and lasts far longer than some competitor gels.
These ingredients all work in synergy to clean the stains out of the pores in your teeth.
🦷 Will the kits whiten my crowns or veneers?
Unfortunately not, all teeth whitening gels will only work on natural teeth.
🤰 Can I use the kits if I’m pregnant?
It is not recommended to use the kits if you are either pregnant or breast feeding.