More like a dusty taste
I had never tried activated charcoal before and had no idea what to expect taste wise. The mint is faint but the charcoal doesn't have much taste. More like a dusty taste. I'm not sure how fast it will whiten teeth but I do see some difference after 2 weeks. I put a small amount of paste on my toothbrush then lightly dip it into the powder, brush rinse and done.  Be careful, the powder is very light an flies easily.
Rating: 5 stars