A whiter smile, without compromise.
Premium whitening strips, pens and LED kits engineered for sensitive teeth. Visible results in as little as 7 days.
Best sellers
The products our customers can't stop repurchasing.
See the difference for yourself
Drag the slider to compare real customer results after using Smile Supply.
Results after 14 days using Smile Supply Whitestrips, twice daily. Individual results may vary.
Whitening, done properly
Dentist-Formulated
Developed with dental professionals for safe, effective whitening.
Gentle on Enamel
PAP-based formulas that whiten without the sensitivity.
Visible Results
Noticeably whiter teeth in as little as 7 days.
Free UK Delivery
Fast, tracked shipping on all orders over £30.
How whitening works
Our formulas break down surface stains using safe, dentist-approved active ingredients.
Apply
Apply your strip, pen or LED tray directly to clean, dry teeth.
Activate
Our active whitening ingredients get to work breaking down surface stains.
Reveal
Rinse and reveal a visibly brighter smile in as little as 7 days.
What our customers say
Based on 12,400 reviews
"My teeth are noticeably whiter after just one week. No sensitivity at all, which is a first for me."
"The LED kit feels like a proper professional treatment at home. Genuinely impressed with the packaging too."
"I've tried three other whitening brands and this is by far the most comfortable and effective."
"Great results, delivery was quick too. Will definitely be repurchasing the whitening pen."
Frequently asked questions
Most customers see visibly whiter teeth within 5-7 days of consistent use, depending on the product and severity of staining.
Our formulas use PAP instead of harsh peroxide, which is gentler on enamel and gums while still being highly effective.
We recommend using your whitening product once daily for the first 7-14 days, then 1-2 times per week for maintenance.
Yes. All Smile Supply products are formulated and manufactured without animal testing.
We offer a 30-day money-back guarantee on all first-time orders. See our Returns page for full details.
Fast, tracked UK delivery
Free UK Delivery
Free tracked delivery on all orders over £30, arriving in 1-3 business days.
Order by 2pm
Order before 2pm Monday to Friday for same-day dispatch.
International Shipping
We ship worldwide with tracked delivery available at checkout.