Happysmileuk provides a wide range of tooth whitening products here are a few links to point you in the right direction:

Polanight teeth whitening gels  10%, 16 % and 22% peroxide formula ( Exact Same brand as the dentist supplies to patients.) Also sold are the pola day formula in Hydrogen  peroxide.

Dental-XL teeth whitening gels - this is the HappySmileuk brand and is sold in a super strong 35% formula- very fast acting- also kind to teeth as it is in a waterbase formula.

Colgate teeth whitening gels this gel is made by Colgate by procter and gamble, this bleach is available in a gentle formula of 5% carbamide peroxide for sensitivity issues, and also a 10% carbamide peroxide for day use.

You will need mouth trays for teeth whitening gels- try this link mouth trays if you want to learn how to make them then click here.

www.happysmileuk.com provides a wide range of professional home dental tooth whitening products- also see www.polanight.co.uk and www.dentalpolisher.co.uk