Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ipsab tooth powder (peppermint)

It took a few days to get used to the taste (it has a slight salty taste to it). The peppermint is not a strong as you would imagine it would be. At first I was squeezing the powder out of the bottle on to my toothbrush and I was wasting powder everyday. Then I transferred the powder into a small container and dipped my toothbrush into it (I was the only one using it). I did see some whitening of my teeth once I started using it consistently but I wanted something with stronger whitening results and more of a minty taste. So I am still looking for a good natural toothpaste. I would use this again though.