OraCMU™ (Weissella cibaria CMU) Evidence & Research


OraCMU™ is a beneficial oral probiotic strain of Weissella cibaria. In simple terms, it is a “good bacteria” studied for supporting fresher breath and influencing bacteria associated with oral malodor.

Designed to:

Support fresher breath and promote a healthier oral microbial environment.

What Research Suggests

A randomized, double-blind, placebo-controlled clinical trial found that supplementation with Weissella cibaria CMU significantly reduced volatile sulfur compounds (VSCs), which are closely associated with oral malodor.

https://pubmed.ncbi.nlm.nih.gov/32379992/


Another randomized clinical study showed that W. cibaria CMU increased colonization of the probiotic strain in the mouth and improved clinical halitosis measurements compared to placebo.

https://pubmed.ncbi.nlm.nih.gov/36733919/


Laboratory comparisons demonstrated that W. cibaria CMU produces hydrogen peroxide at higher levels than several other probiotic strains, contributing to inhibition of certain oral bacteria.

https://pubmed.ncbi.nlm.nih.gov/27999400/


Mechanistic studies show that hydrogen peroxide produced by W. cibaria contributes to antimicrobial activity and suppression of bacteria involved in malodor production.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6222630/


Hydrogen peroxide is widely used in professional whitening systems because it oxidizes chromogens that cause tooth discoloration.

https://pubmed.ncbi.nlm.nih.gov/16510696/

What This Means

Research suggests that OraCMU™ may support fresher breath by reducing compounds linked to oral malodor and by producing hydrogen peroxide — a naturally occurring antimicrobial compound. While this is not the same as bleaching treatments, hydrogen peroxide production supports a cleaner oral environment and may contribute to reduced stain-causing biofilm over time.

Evena’s Use of OraCMU™

Evena includes OraCMU™ to help reduce compounds associated with bad breath and to support a balanced oral ecosystem overnight — contributing to a fresher feeling upon waking.

These statements have not been evaluated by the Food and Drug Administration. This information is provided for educational purposes only and is not medical advice.