About effectiveness.
Doesn’t work as you expected. Very poor product by Colgate. No quality in this product. It will not work if apply to teeth ever hour. Don’t trust this product. Colgate but take action to this issue. No affect on teeth 1% also.
About value of money.
Waste of money . Please don’t buy this product. Doesn’t work or any action on your teeth as you expected how it works. I prefer you to go for the another product. It doesn’t worth of buying. Colgate must take an serious action on this product before the problem become bigger. Please don’t go for this product. I am sure it will not work as you expecte.