4 SDI PolaNight teeth whitening gel syringes with a soft blue studio glow
2 SDI PolaNight teeth whitening gel syringes with a soft blue studio glow
6 SDI PolaNight teeth whitening gel syringes with a soft blue studio glow
8 SDI PolaNight teeth whitening gel syringes with a soft blue studio glow
SDI PolaDay teeth whitening gel, 4 syringes on a pale blue background
SDI PolaDay teeth whitening gel, 2 syringes on a pale blue background
SDI PolaDay teeth whitening gel, 6 syringes on a pale blue background
SDI PolaDay teeth whitening gel, 8 syringes on a pale blue background
Trusted By Over 1,000,000+ Users

Pola Day & Night Teeth Whitening Gel | All Strengths

Achieve a brighter, more confident smile with Pola Day and Pola Night Teeth Whitening Gels from SDI. Trusted by dental professionals worldwide, Pola whitening gels combine powerful whitening performance with advanced desensitising ingredients to deliver outstanding results while helping to minimise sensitivity.

Brighten up to 8 ShadesNext Day UK DeliveryEnamel Safe
TypePolaNight
Strength22%
SyringesFour
£44.99 £34.99
UK Next-Day DeliveryQuick & Secure Checkout30-Day Guarantee
Chris G. - Verified Buyer

This is the same stuff as purchased from my dentist with trays. I have very little tooth sensitivity with this, and it noticeably whitened my teeth after each use.

Description

SDI PolaDay and PolaNight whitening gels offer a choice of daytime and longer-wear formulas. Select your formula, strength and syringe quantity above. Each syringe contains 1.3g of gel and comes with an application tip. Whitening trays and the manufacturer's retail box are not included. Use with properly fitting trays and follow the instructions for your selected formula.

  • PolaDay: 7.5% or 9.5% hydrogen peroxide; CP 35% carbamide peroxide.
  • PolaNight: 10%, 16% or 22% carbamide peroxide.
  • Pack sizes: 2, 4, 6 or 8 syringes.
  • Packaging: individual 1.3g syringes with application tips.
30 Day Guarantee

We're confident you'll love your results! If something's not quite right, reach out within 30 days and we'll make it right.

Real Results

SEE THE DIFFERENCE FOR YOURSELF

Before & Afters From Verified Customers

Before and after whitening result — Sarah M.
+4 shades
Sarah M. ★★★★★
Before and after whitening result — Emily R.
+3 shades
Emily R. ★★★★★
Before and after whitening result — James K.
+3 shades
James K. ★★★★★
Before and after whitening result — Charlotte B.
+5 shades
Charlotte B. ★★★★★
Before and after whitening result — Olivia T.
+4 shades
Olivia T. ★★★★★
Before and after whitening result — Marcus D.
+3 shades
Marcus D. ★★★★★

Professional Whitening

Which strength is best for you?

Two whitening formulas. Six concentrations. Find the right fit for your routine.

Pola Night
10% Carbamide Peroxide

Gentle & Sensitive

The softest starting point. Ideal for first-time whiteners, highly sensitive teeth, or anyone wanting gradual, comfortable overnight results.

  • Wear 2 hrs or overnight
  • Results from day 7–10
  • Lowest sensitivity risk
Pola Night
22% Carbamide Peroxide

Maximum Strength

For experienced whiteners who prefer a concentrated formula and a shorter daily session. Wear for 45 minutes once daily; do not use overnight.

  • Wear 45 minutes once daily
  • Results from day 3–5
  • Higher sensitivity possible
Pola Day
7.5% Hydrogen Peroxide

Quick & Gentle

Professional whitening in a flexible daytime routine. Choose 30 minutes once or twice daily, or one 45-minute session, following the instructions for your gel.

  • Wear 30 minutes once or twice daily
  • Or 45 minutes once daily
  • Gentle enough for daily use
Ideal as a kick-start or quick top-up between more intensive whitening courses
Pola Day
Professional Strength
35% Carbamide Peroxide

Maximum Daytime Whitening

The highest-strength carbamide peroxide formula in the Pola range. Designed for daytime wear sessions, it delivers powerful whitening results for experienced patients who want fast, dramatic improvement.

  • Wear 15 minutes once daily
  • Results from day 3–5
  • Dentist supervision advised
Recommended for experienced whiteners only. Higher sensitivity is possible at 35% CP.
BPA-Free & HEMA-Free
Built-in desensitizer
Trusted by dentists for 50+ years
Fluoride remineralisation
Pola Desensitizing Technology

Pola Desensitizing Technology

The combination of neutral pH, Potassium Nitrate and Fluoride reduces the likelihood of gum irritation, burning, pain or longer term damage.

Faster Whitening

Faster Whitening

Pola whitening formula is among the fastest and strongest available.

Effective Whitening

Effective Whitening

Pola's unique formula removes the hardest stains.

Full Surface Whitening

Full Surface Whitening

Pola's custom trays ensure every tooth surface edge is whitened.

The Science

How Pola Whitening Works

Pola teeth whitening is formulated to safely remove hard, longer-term stains from your teeth and return your smile to your whitest natural shade possible. All without damaging the health of your teeth.

Pola's unique, high water content formulation has a neutral pH and a high viscosity to protect your gums during treatment. Pola also contains fluoride, to remineralize your teeth and protect against tooth sensitivity.

When Pola is applied, the refined formula safely enters your tooth enamel to actively remove longer-term stains and discolouration. The stain molecules are then naturally coated by your saliva, which safely removes them from your system.

Oxygen ions enter the enamel and attack the long stain molecules
Step 01

Oxygen ions enter the enamel and attack the long stain molecules

Oxygen ions enter the enamel and attack the long stain molecules
Step 02

Oxygen ions enter the enamel and attack the long stain molecules

Oxygen ions enter the enamel and attack the long stain molecules
Step 03

Oxygen ions enter the enamel and attack the long stain molecules

How It Compares

Not all whitening is created equal.

See how Pola stacks up against strips, in-chair treatments, and other at-home options.

Feature
Best Value Pola Night 10 / 16 / 22% CP
Fastest Pola Day 7.5 / 9.5% HP / 35% CP
Whitening Strips OTC brands
In-Chair Treatment Dental clinic
Removes Hard Stains
Clinical-grade formula
At-home use
Built-in desensitizer
Custom fit tray
Visible results 7–14 days 3–7 days 14–21 days 1 session
BPA-free formula
Sensitivity safe
Cost $$ $$ $ $$$$
Shop Night Shop Day

Pola whitening gel guide

Pola Day and Pola Night Whitening Gel FAQs

Compare PolaDay and PolaNight teeth whitening gels, peroxide strengths, manufacturer-listed wear times, syringe quantities and whitening tray requirements.

What is the difference between PolaDay and PolaNight?

PolaDay is designed for shorter daytime whitening sessions. PolaDay 7.5% and 9.5% use hydrogen peroxide, while PolaDay CP 35% uses carbamide peroxide but is formulated for a short 15-minute daytime treatment. PolaNight uses carbamide peroxide for slower release and longer wear and is available in 10%, 16% and 22%.

Because the ranges use different peroxide ingredients and release profiles, the percentages should not be compared directly like for like.

How long should I wear PolaDay or PolaNight whitening gel?
  • PolaDay 7.5% hydrogen peroxide: 30 minutes once or twice daily, or 45 minutes once daily.
  • PolaDay 9.5% hydrogen peroxide: 15 minutes twice daily, or 30 minutes once daily.
  • PolaDay CP 35% carbamide peroxide: 15 minutes once daily for at-home use.
  • PolaNight 10% carbamide peroxide: 2 hours to overnight.
  • PolaNight 16% carbamide peroxide: 90 minutes to overnight.
  • PolaNight 22% carbamide peroxide: 45 minutes once daily.

Always follow the instructions supplied with your selected formula and any directions given by your dentist.

Do I need whitening trays for PolaDay or PolaNight, and are they included?

Both PolaDay and PolaNight whitening gels are designed for use with properly fitting whitening trays. Whitening trays are sold separately. If you do not already have suitable trays, see our reusable teeth whitening trays.

How many Pola whitening gel syringes can I order?

You can select two, four, six or eight 1.3g Pola whitening gel syringes. Choose PolaDay or PolaNight, the exact strength and the syringe quantity before adding the product to your basket. Application tips are included; the manufacturer's retail box and whitening trays are not included.

Which Pola teeth whitening strength should I choose?

Choose by formula, wear time, previous whitening experience and sensitivity rather than selecting the largest percentage automatically.

  • PolaDay 7.5% HP: the lower-concentration hydrogen peroxide option and the more cautious daytime starting point.
  • PolaDay 9.5% HP: the higher-concentration hydrogen peroxide option with shorter sessions.
  • PolaDay CP 35%: a carbamide peroxide formula intended for a short 15-minute daytime treatment; its percentage is not directly comparable with 7.5% or 9.5% hydrogen peroxide.
  • PolaNight 10% CP: the lowest-concentration longer-wear option.
  • PolaNight 16% CP: the middle PolaNight strength.
  • PolaNight 22% CP: the highest-concentration PolaNight option with a shorter 45-minute wear time.

If you are new to whitening or concerned about sensitivity, begin with a lower-concentration option and ask your dentist if you are unsure which formula is suitable.

Can PolaDay or PolaNight cause tooth sensitivity?

Temporary tooth sensitivity or gum irritation can occur with peroxide whitening products. Pola gels contain potassium nitrate and fluoride and have a high-water formulation designed to help manage sensitivity, but individual responses vary. Use only a small amount of gel, follow the stated wear time and stop or reduce use if discomfort develops. Seek dental advice if sensitivity is significant or persists.

Will Pola whitening gel whiten fillings, crowns or veneers?

Pola whitening gel lightens natural tooth structure but does not predictably change the colour of fillings, crowns, veneers or bonding. If you have visible dental restorations, ask your dentist how whitening could affect the final colour match before starting treatment.

How do I apply the whitening gel?

Use a small amount of gel in the tooth compartments of a properly fitting whitening tray. Follow the instructions for your exact formula and strength, then remove the tray and clean it as directed. Avoid overfilling the tray so excess gel does not spread onto your gums.

How should I store the whitening gel?

Follow the storage instructions on your syringe or packaging, keep the gel away from heat and direct sunlight, and check the expiry date before use. Storage requirements can vary between formulas.

OUR PROMISE

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Try Sparkling Teeth products for 30 days. If you're not completely satisfied, simply return the product! We stand by our quality and customer satisfaction.