Intensive PAP™ Teeth Whitening Kit

£39.99 £29.99
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Achieve and maintain a sparkling smile with our Intensive PAP™ Kit. Designed to whiten your teeth in the comfort of your own homeour formula delivers noticeable results with no discomfort or sensitivity. 

Experience professional-level whitening in just 10 applications, each taking only 20 minutes.

Key Features   
10 Applications Whiter in 20 minutes
No Sensitivity & No Irritation Safe Formula
Convenient & Easy Vegan friendly

The Intensive PAP formula

Our formula contains the active ingredient Phthalimidoperoxycaproic acid (PAP), which works quickly to remove surface stains and discolouration from the enamel of the teeth.  Potassium nitrate and hydroxyapatite are in the formula too, to remineralise and strengthen your teeth for a healthier smile.

What's included?

  • High Frequency LED Light
  • 4 x Teeth Whitening Gel
  • Universal Comfort Fit Tray
  • Teeth Shade Guide
  • User Guide

How to use?

Step 1
Attach the LED light to the reusable mouth tray.

Step 2
Apply the gel to the top and bottom of the tray.

Step 3
Insert the tray into your mouth and leave for 20 minutes.

Key ingredients

Phthalimidoperoxycaproicacid (PAP) is scientifically proven to whiten teeth without harmful side effects.

Potassium Nitrate helps alleviate and treat pre-existing tooth sensitivity.

Hydroxyapatite protects the outer layer of teeth, prevents demineralisation and helps rebuild your tooth enamel.

Shipping Information

We aim to dispatch all orders placed before 2 pm GMT Monday-Friday on the same day.

Express UK Delivery

Royal Mail Tracked 24® (1-2 business days) - FREE

Royal Mail Special Delivery Guaranteed by 1pm® - £4.99

International Delivery

Royal Mail International Tracked (5-10 business days) - £7.99

30-Day Money-Back Guarantee

Our teeth whitening product guarantees a minimum of 2 shades whiter teeth. To claim a refund, follow these steps within 30 days of receiving the product:

  1. Take a before and after photo of your teeth along with a photo of the used product.
  2. Email the photos to
We'll process your request in 1-3 business days, so ensure the photos have a valid timestamp.

    Intensive PAP Formula

    Three key ingredients that work in harmony

    Our whitening formula leaves your teeth as strong and healthy as they are beautifully white.


    Teeth Whitening

    Phthalimidoperoxycaproicacid (PAP) is scientifically proven to whiten teeth without harmful side effects.


    Reduce Sensitivity

    Potassium Nitrate helps alleviate and treat pre-existing tooth sensitivity.


    Protect & Rebuild

    Hydroxyapatite protects the outer layer of teeth, prevents demineralisation and helps rebuild your tooth enamel.

    Smartly designed for fuss-free application

    Our clever kit makes whitening your teeth effortless. With Smilerex®, teeth whitening time will become a favourite part of your self-care routine.

    Illuminate Your Journey to a Dazzling Smile:

    Our High Frequency 6-bulb blue spectrum light is designed to bring professional-grade teeth whitening into the comfort of your own home. The blue LED technology targets deep-seated stains and discolouration, activating whitening agents for accelerated results.

    The Science Behind Your Smile

    Would you love a whiter smile? When your teeth are strong and healthy with a pure-white sparkle, you look amazing and feel more confident. Teeth whitening products can help you achieve a dazzling smile – and there’s a unique science behind the way they work.

    Learn more
    Are smilerex® teeth whitening products safe?
    How does the Intensive PAP formula work?
    Can I use smilerex® on caps, crowns, veneers, dental implants, bridges, teeth with braces?
    List of ingredients
    How soon will I see results?

    A Whiter Smile Equals a More Confident You

    Smilerex® is at the forefront of powerful yet safe teeth whitening.

    PAP is scientifically proven to whiten teeth without causing pain or sensitivity.

    Customer Reviews

    Based on 116 reviews
    Nathan T. (United Kingdom)
    Great Whitening Product

    This product is easy to use and doesn’t have a bad taste. Teeth were significantly whiter in 7 days. I would recommend this product. Thank you smilerex!

    Grzegorz Partyka (United Kingdom)
    Working as it says

    Usually I'm sceptic a specially as is not expensive . I used it 3 times I thought that is not working . I did 5th time now and I'm shocked . It is massive difference . Highly recommended, but on my 5 days in a row I could see big improvement

    Victoria C. (United Kingdom)
    Better than paying the dentist

    This is a very easy system to use, and the results are almost immediate. I am one happy white smiling customer! I will definitely buy it again.

    Juliet W. (United Kingdom)
    Great product and price. Will buy again

    It worked SUPER well and made my teeth so much better and white. Have gotten multiple compliments 😍

    Barry English
    Worked well

    I am 70 years old, after years of smoking and drinking black tea and coffee my teeth resembled the teeth of a camel, dark yellow. After using the kit they look so much better, OK not film star brilliant white, but certainly much nicer. I would thoroughly recommend this product which is excellent value for money.

    Deborah Shearman (United Kingdom)

    Good my teeth are badly stained and it's whitened some more than others

    Jane B. (United Kingdom)
    First time trying …

    I've only done 5 applications. It made my teeth so white. Great product, it really works! I ordered your strips too. Can't wait to try 😊

    Hey Jane,
    Thank you so much for sharing. We're super happy that you've had a great experience!