Just saw one of my liked pages on Facebook is offering a free Crest Whitestrips Sample. Only says the requirement is likening their Facebook page.
Product is for the Gentle Routine version and designed for sensitive teeth.
Direct link: https://www.whitersmile.com.au
Facebook page: https://www.facebook.com/whitersmile
Crest 3D White Whitestrips Gentle Routine is comprised of thin, flexible strips that are coated with a tooth whitening gel containing peroxide. Designed to conform to the shape of your teeth, they work by keeping the whitening gel on your teeth for 5 minutes once a day to provide gentle whitening.
Don't forget to grab your free denture adhesive. It's a match made in heaven :)