S3 Sensitivity Science Voucher Codes
We currently list 1 voucher code for S3 Sensitivity Science. Top offer right now: “10% off your first S3 order”. Last updated 2 Nov 2026.
S3 Sensitivity Science is a UK-based oral care brand specialising in advanced toothpaste designed specifically for people with sensitive teeth. Founded by a team with experience in dental science, including former toothpaste scientists and practising dentists, the company aims to take a different approach to everyday sensitivity care.
Rather than focusing on just one aspect of sensitive teeth, S3 has developed its own patent-pending S3 Repair Technology™, combining three different actions in a single toothpaste: calming sensitivity, strengthening enamel and providing protection.
The brand’s philosophy is built around making effective dental care part of an everyday routine, without the need for additional treatments or complicated products. Its formula combines potassium nitrate, nano-hydroxyapatite, biomimetic hydroxyapatite and fluoride to provide a comprehensive approach to sensitive teeth.
S3 has also worked with more than 20 UK dentists in developing its approach, with independent testing and consumer studies forming part of its product research.
Whether you’re looking for an alternative to your usual sensitive toothpaste or want a product that combines sensitivity care with everyday enamel protection, S3 offers a specialist option worth exploring.
Voucher codes
1 active code for S3 Sensitivity Science
10% off your first S3 order
New customers save 10% on their first S3 Sensitivity Science order with AFF10. On subscriptions, the discount applies to the first payment only.
Updated 02 Nov 2026
Expires 31 Dec 2027
Visit StoreTerms & conditions
Use code AFF10 for 10% off your first order. New customers only. One use per customer. On subscriptions, the discount applies to the first payment only. Offer ends 31 December 2027 at 23:59 (Europe/London).
Our Favourite Products at S3 Sensitivity Science
The main product is S3 Daily Sensitive Toothpaste, a premium daily toothpaste developed to address three aspects of sensitive teeth.
Its S3 Repair Technology™ combines three key actions:
• Calm: Potassium nitrate (5%) helps reduce the nerve response associated with tooth sensitivity.
• Strengthen: Nano-hydroxyapatite (10%) works on the enamel surface and exposed dentine channels.
• Protect: Biomimetic hydroxyapatite (5%) helps form a protective mineral layer, while fluoride (1450ppm) provides everyday protection against tooth decay.
The formula is designed to provide these benefits in one product, rather than requiring separate toothpaste products for different aspects of oral care.
S3 Daily Sensitive Toothpaste comes in a fresh mint flavour and is suitable for everyday brushing. The brand also describes its formulations as vegan and cruelty-free.
