I use this product and it's good. Needed to buy some over the Xmas period and was going to pay £8.99 in Boots / Superdrug. Did a search on mysupermarket.com and it came up with Waitrose as the cheapest. I did also find it in Wilko but it doesn't come up on their website.
This is the Hydrate+ , not the ordinary one.
Valid untill 24/01/2017