These two products come up together more than any other pair in the oral health supplement space — for good reason. Both are chewable oral probiotic tablets using L. reuteri as their primary active strain. So why would you choose one over the other? Here’s the honest side-by-side.
| Feature | ProDentim | GumAktiv |
|---|---|---|
| Format | Chewable tablet | Chewable tablet |
| Primary strain | L. reuteri | L. reuteri |
| Secondary strains | L. paracasei, B. lactis BL-04 | L. paracasei |
| Additional ingredients | Inulin, Malic acid, Peppermint | Inulin, Peppermint |
| Guarantee | 60 days | 60 days |
| Rating | ⭐ 4.1/5 | ⭐ 4.0/5 |
Where they’re functionally identical
The core of both products is the same: L. reuteri delivered via a chewable tablet that dissolves in the mouth, paired with L. paracasei and inulin prebiotic fiber. The L. reuteri evidence for gum health — multiple randomized trials showing reduced gingival bleeding and plaque scores — applies equally to both products to the extent that both are using this strain in sufficient doses (which neither fully discloses). For most users choosing between the two for gum health and bad breath, the difference in likely outcome is small.
The meaningful differences
ProDentim adds Bifidobacterium lactis BL-04® — well-researched for gut and respiratory health, less directly evidenced for oral health specifically. Its addition may have systemic immune benefits but doesn’t directly strengthen the oral-specific case. ProDentim adds malic acid for mild brightening and saliva stimulation — minor addition. GumAktiv’s formula is simpler — easier to attribute any effects to specific components, fewer potential interactions.
Who should choose which
Choose ProDentim if you want the fuller formula and don’t mind paying for extras. Choose GumAktiv if you want the core oral probiotic formula without additional ingredients you may not need. Full reviews: ProDentim review | GumAktiv review. For comparison against all five major oral health supplements, see our complete comparison.
→ Try ProDentim
→ Try GumAktiv
Informational comparison. Not medical advice. Affiliate links present.