My toothsoap does not taste in the least sweet, but I didn't add much xylitol because I didn't want to go overboard. I don't much like sweet, anyway. But I also used peanut oil, so I would not call it sweet. But perhaps the amount of charcoal in my soap has something to do with that, and the fact that the charcoal I have is made with coconut hulls. Or maybe it's the tiny bit of turmeric I added that prevents sweetness,
Okay, here's a link to the recipe I used for the toothsoap I still use daily.
https://www.soapmakingforum.com/threads/soap-for-teeth.60591/page-3#post-614047If
If you read through that thread, you will see some folks mentioning that AC is used as a tooth whitener, well I can guarantee you that if you drink iced tea all day long like I do, tooth whitener won't make your teeth white and neither does this soap. Maybe if I stopped drinking tea it would, but that's not going to happen anytime soon. Just so you know, dietary intake plays a very big role in how effective tooth whitener are. I have also gone the route of professional tooth whitening, ad let me tell me tell you, don't eat raw carrots right after a tooth whitening treatment!
Back to the toothsoap. I made a very small batch and still have not used it all up, so have not yet made another batch.
I will say that before I made the toothsoap I used pure OO soap and it actually tasted better than this recipe. I may experiment with a different recipe next time I make this, but I still have a couple more tiny bars.
However I am very pleased with this toothsoap for how well it cleans my teeth and have only used toothpaste a couple of times in the last 16 months, and I really don't like how the toothpaste feels anymore. So I plan to stick to tooth soap as long as I can.