Everything You Need to Know About Teeth Whitening Gel
Your smile is one of the first things people notice and it deserves the very best care. When it comes to whitening your teeth, not all gels are created equal.
Most whitening gels still rely on hydrogen peroxide or carbamide peroxide. While peroxide can remove stains, it also causes sensitivity, gum irritation and long-term enamel erosion. That's why so many people quit halfway through their whitening journey the pain outweighs the results.
At Polished London, we've changed that.
What is teeth whitening gel?
Whitening gel is a targeted treatment that removes everyday stains from the enamel. From coffee and tea to red wine and food pigments, stains build up gradually and dull your natural shade. Applied directly to the teeth (via an LED mouthpiece or tray), whitening gel breaks down stains and restores brightness.
The results depend entirely on the formula:
- Peroxide gels harsh, aggressive, risk of sensitivity and enamel damage.
- PAP gels gentle, effective and enamel-safe.
Why PAP is the future of whitening
PAP (Phthalimidoperoxycaproic acid) is the modern alternative to peroxide and it's transforming whitening worldwide. Here's why:
- Enamel-safe - unlike peroxide, PAP doesn't release harmful free radicals that damage enamel.
- No sensitivity - whitens without pain or gum irritation.
- Clinically proven - backed by studies to be both safe and effective.
- Consistent results - gradual, even brightness that lasts.
The Polished London Whitening Gel
Our Peroxide-Free LED Whitening Gel Refill is UK-made and powered by an 18% concentration of PAP PRO technology next-generation whitening clinically proven to brighten teeth safely at home. Dentist-created, clinically tested and designed for everyday smiles.
It pairs perfectly with our LED Teeth Whitening & Oral Wellness System combining the power of dual red and blue light with the most advanced peroxide-free formula available.
Whitening gel myths vs facts
- Myth: Whitening gel damages enamel.
- Fact: With peroxide, yes. With PAP, no PAP actively protects enamel while lifting stains.
- Myth: At-home whitening doesn't work.
- Fact: Clinically proven PAP formulas deliver visible results at home, safely.
- Myth: The stronger the formula, the better.
- Fact: Stronger peroxide means stronger damage. Smart whitening is about balance, not brute force.
Build your complete whitening routine
The gel works best as part of a wider SmileCare routine:
- LED Teeth Whitening & Oral Wellness System - the complete kit with dual light technology and PAP gel included.
- Whitening Gel Refill — keep your results going after your first kit.
- Cloudberry + Mint Prebiotic Toothpaste - daily maintenance to support your microbiome and maintain brightness.
- Hydroxyapatite Whitening Toothpaste - strengthen enamel between whitening sessions.
- Advanced Teeth Whitening Strips - use between LED sessions to maintain your shade.
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It's not just whitening. It's SmileCare in a gel.
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