| Effect | Increase |
| Trial Design | Randomized trial |
| Trial Length | 1-7 Days |
| Number of Subjects | 40 |
| Sex | Both Genders |
| Age Range | 65+ |
A pilot study tested a 1.33% betaine solution (albeit with olive oil and xylitol possibly also being bioactive) has noted benefits to dry mouth symptoms relative to unblinded control.
