I've tried all of their products with the exception of the tooth whitener lozenges.
Salese is the best of their lozenges. It works well for dry mouth relief, but you have to constantly drink small sips of water in order for it to work for dry mouth and bad breath relief. It is probably the best of the dry mouth products on the market. As for bad breath, these lozenges work for this as well, but only if you do not get too close to anyone. A major downside of this product is its overwhelmingly strong minty flavor, which will be very noticeable on your breath. I found the strong mint flavor offended coworkers if I got too close to them. If you're going to try salese for dry mouth, I'd recommend the wintergreen flavor, only because it is slightly less minty as their peppermint flavor, which is overwhelmingly too minty strong; it's almost spicy hot. The lemon flavor tastes awful, and I don't think this flavor works at all for freshening the breath. Unfortunately, since salese only comes in peppermint, wintergreen and lemon, which are flavors not recommended for GERD sufferers, they can cause stomach upset. This stuff would be perfect if only they would develop a non mint and/or non acidic flavor. I would be totally in love with this stuff if only it came in vanilla or butterscotch flavor.
The lozenge lasts about an hour in your mouth, depending on the amount of water you drink with it.
Dentiva - Not as effective for dry mouth and bad breath as the salese. I barely noticed if they worked at all for dry mouth and bad breath. They seem too weak, and they don't melt as well in the mouth as the salese. The texture is ver stiff, and rubbery. They do not dissolve fast enough to be effective.
Breath Nuvora did absolutely nothing for my dry mouth or bad breath. These are weaker than the Dentiva lozenges. Do not waste your time or money on these. Chewing gum and mints are better than these.