Went to my local Boots £ 2.69. Other side of the road my local 99p store doing the same for 99p. Better than half price for those who drink wine and want to avoid teeth erosion.
Specially Formulated for Sensitive Teeth and Enamel Protection. Remineralises the enamel, hardening the tooth surface. Makes enamel more resistant to... Acidic Drinks, Acidic Foods. Protection for Sensitive Teeth. Helping you to enjoy... Cold, Hot.