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Smileflex® Pro Custom Whitening Gels

Whitening Option

Afterpay logo

How Afterpay works

Fill Your Cart

Fill your cart
Add your favourite Smileflex products to your cart and head to checkout.

Choose Afterpay At Checkout

Choose Afterpay at Checkout
Select Afterpay as your payment method in the third step of checkout.

Enjoy Instant Approval

Enjoy Instant Approval
Create or log into your Afterpay account, with instant approval in seconds.

Split Into Instalments

Split into Instalments
Your purchase will be split into 4 instalments, to be paid every 2 weeks.

You don’t have to wait until payday for dental care!

Unlike a traditional lay-buy, Afterpay allows you to receive your products straight away, meaning you can smile now and pay later!

All you need is:

  • To have a debit or credit card ready
  • Be over 18 years of age
  • Be a resident of Australia

To use this service:

  • Select Afterpay as your payment option in checkout
  • Follow the prompts to either create or log into your Afterpay account
Paypal logo

How Paypal - Pay in 4 works

Fill Your Cart

Fill your cart
Add your favourite Smileflex products to your cart and head to checkout.

Choose Paypal - Pay in 4 At Checkout

Choose Paypal at Checkout
Select Paypal as your payment method in the third step of checkout.

Enjoy Instant Approval

Enjoy Instant Approval
Create or log into your Paypal account, with instant approval in seconds.

Split Into Instalments

Split into Instalments
Your purchase will be split into 4 instalments, to be paid every 2 weeks.

You don’t have to wait until payday for dental care!

Unlike a traditional lay-buy, Paypal - Pay in 4 allows you to receive your products straight away, meaning you can smile now and pay later!

All you need is:

  • To have a debit or credit card ready
  • Be over 18 years of age
  • Be a resident of Australia

To use this service:

  • Select Paypal as your payment option in checkout
  • Follow the prompts to either create or log into your Paypal account
Klarna logo

How Klarna works

Fill Your Cart

Fill your cart
Add your favourite Smileflex products to your cart and head to checkout.

Choose Klarna At Checkout

Choose Klarna at Checkout
Select Klarna as your payment method in the third step of checkout.

Enjoy Instant Approval

Enjoy Instant Approval
Create or log into your Klarna account, with instant approval in seconds.

Split Into Instalments

Split into Instalments
Your purchase will be split into 4 instalments, to be paid every 2 weeks.

You don’t have to wait until payday for dental care!

Unlike a traditional lay-buy, Klarna allows you to receive your products straight away, meaning you can smile now and pay later!

All you need is:

  • To have a debit or credit card ready
  • Be over 18 years of age
  • Be a resident of Australia

To use this service:

  • Select Klarna as your payment option in checkout
  • Follow the prompts to either create or log into your Klarna account

Shipping information

FREE

Australia Post Standard(4–6 business days)For orders $80+

$7.99

Australia Post Standard(4–6 business days)For orders below $80

$10.99

Australia Post Express(1–2 business days)For all orders

Please note: The shipping time frame above may differ in length between each state. Extreme weather conditions may cause Australia Post delays out of our control. Learn more.

Orders placed by 2pm AEST will be dispatched the same business day from our warehouse in Melbourne. Estimated delivery time frames are based on Metro areas.

Smileflex Pro Finish™

We design your order with the Smileflex Pro Finish™, our guideline based on the highest industry standards for custom-fitted dental appliances.
This guarantees consistency by each one of our Smileflex technicians and a quality finish for every product.
Front view

1–2mm precise cut over your gum tissue.
To allow for easy removal of any expelled teeth whitening gel.

1mm thickness of space between the tray and front surfaces of your teeth.
To allow the required amount of gel for ultimate whitening results.


Top view

1–2mm straight cut over your gum tissue following the contour of your mouth.
For tray aesthetics and comfort during treatment.

Coverage extended up to your second molars. (All visible tooth faces when smiling.)

Need gel refills for your Smileflex pro custom trays? Maintain or improve your smile with our dental grade whitening formula. Each refill box contains 3 gels for a total of at least 9 treatments.

  • 6% Hydrogen Peroxide (18% Carbamide Peroxide equivalent)
  • Enamel-safe formula
  • Results last up to 13x longer than PAP and PAP+ formulas
  • Custom-fitted whitening trays required

Dental Grade Gel Formula

A whiter smile for longer. The Smileflex formula is powered with Hydrogen Peroxide, the most effective whitening agent offered by cosmetic dentists. Needing no LED light activation, our teeth whitening gel is specially formulated for your custom-fitted trays. The Smileflex formula is safe and PAP+ free—an abrasive ingredient used in generic formulas—ensuring no enamel damage or tooth dehydration takes place.
Up to 13x longer lasting than PAP and PAP+ formulas1
  3x more efficient than Carbamide Peroxide formula2
1Based on expected results lasting 9-12 months for Hydrogen Peroxide formula compared with expected results lasting 3-4 weeks for PAP and PAP+ formulas.
2Based on the recommended 30-60 minutes application time for Hydrogen Peroxide formula compared with the recommended 1-3 hours application time for Carbamide Peroxide formula.

Advanced Shade Guide™

The all-in-one system for all. Our advanced shade system covers all teeth staining chroma. Afterall, teeth stain in shades of four major colour categories⁠: red-brown, red-yellow, grey and red-grey. With your included Smileflex Advanced Shade Guide™, you'll be able to colour match more accurately and progressively track your whitening results with ease.

Product details

Frequently Asked Questions

You asked, we answered! We’ve put together some of the most commonly asked questions about our teeth whitening gel refills. If you can't find the answers you're looking for below, head over to the Smileflex Help Centre for even more information.
Product reviews

All of our store's product reviews can be found at our dedicated Results & Reviews page.


Join the Flex Club

Smileflex® Pro Custom Whitening Gels / 3 x Gels