Mouthwash without alcohol: gentle on gums?
NCT ID NCT07160166
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether two alcohol-free mouthwashes cause mouth irritation compared to a marketed control. 169 healthy adults brushed and rinsed twice daily for 14 days. Researchers checked mouth tissues for any signs of irritation or side effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- alcohol-free essential oil mouthwash
- What this could lead to
- If successful, this could confirm that alcohol-free mouthwashes are gentle on the mouth and gums for daily use.
- What could go wrong
- This is a small, completed study with no blinding or placebo control, so results may not apply to everyone. It only looked at short-term irritation, not long-term effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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169 people
The number who actually took part.
- Started
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Jul 2025
- Finished
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Jul 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Adults, 18 years of age and older, at the time of screening/baseline (approximately 15% Black and 5% Asian race; approximately 10% Hispanic ethnicity). 2. Generally, in good general and oral health (i.e. brush teeth daily and exhibit no signs of gross oral neglect) without any known allergy to commercial dental products or cosmetics. 3. Able to comprehend and follow the requirements and restrictions of the clinical trial (including willingness to use the assigned study products per instructions, availability on scheduled visit dates and likeliness of completing the clinical trial) based upon research site personnel's assessment. 4. Individual has signed the Consent for Photograph Release and ICD (and/or Assent Document, as applicable)including Health Insurance Portability and Accountability Act (HIPAA) disclosure. 5. Able to read and understand the local language (subject is capable of reading the documents). 6. Generally, in good health based on medical history reported by the subject. 7. In good oral health with adequate oral hygiene (i.e. brush teeth daily and exhibit no signs of gross oral neglect). 8. Negative pregnancy urine tests (females of child-bearing potential only): * For females: Postmenopausal state (i.e. at least 1 year without menses without an alternative medical condition prior to the first study IP administration) or premenopausal/perimenopausal state with an effective means of contraception. * For males: No pregnant or lactating spouse or partner at screening and willingness to utilize an acceptable form of birth control with spouse or any potential partner during the study and for 30 days thereafter. 9. Females of childbearing potential must be using a medically acceptable method of birth control for at least one month prior to Visit 1 and agree to continue using this method during their participation in the clinical trial. Medically acceptable forms of birth control that may be used by the subject and/or his/her partner include: * Double barrier method (condoms, diaphragm or cervical cap with spermicide), * Hormonal prescription contraceptives (i.e., oral, injectable, implanted, patch or vaginal ring hormone therapy) * Intrauterine device (IUD) * Surgical sterilization (e.g., vasectomy that has been confirmed effective by sperm count check, tubal ligation, hysterectomy and/or bilateral oophorectomy) * Abstinence 10. A minimum of 16 uncrowned teeth. 11. Absence of significant oral soft tissue pathology, periodontitis and active dental caries, based on a visual examination and at the discretion of the Investigator. 12. Absence of partial dentures, dentures, orthodontic bands, fixed retainers, removable orthodontic appliances. Exclusion Criteria: 1. Diagnosed with Xerostomia. 2. Suspected alcohol or substance abuse at the discretion of the Investigator (e.g., amphetamines, benzodiazepines, cocaine, marijuana, opiates). 3. Known sensitivity, allergy or contraindications to any investigational product ingredient, oral care products and auxiliary supplies provided for the study. 4. Self-reported smokeless tobacco user including snuff, chewing tobacco, vaping and e-cigarette usage. 5. Females who are self-reported to be pregnant, planning to become pregnant or breastfeeding during the study. 6. Participation in any clinical study investigation within 30 days of Screening visit (Visit 1). 7. Planned surgery during the trial period, 6 months prior to clinic visit 1 or 30 days after the end of study period. 8. Has a compromised immune system, in the judgement of the medically qualified investigator. 9. Has any acute or chronic, medical or psychiatric conditions) that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgement of the medically qualified investigator, would make the subject inappropriate for entry in this study; 10. Significant, unstable or uncontrolled medical condition which may interfere with subject's participation in the study, at the discretion of the Investigator. 11. Has self-reported Type 1 or Type 2 diabetes or is taking insulin or another anti-diabetic medication; 12. Is taking a medication that would mask an Adverse Event (AE) or confound the study results, including: * Immunosuppressive or steroidal drugs within 2 months before Visit 1.\* * Non-steroidal anti-inflammatory drugs within 5 days before Visit 1. * Antihistamines within 2 weeks before Visit 1. 13. Subjects who are related to those persons involved directly or indirectly with the conduct of this study (i.e., principal Investigator, sub-investigators, study coordinators, other site personnel, employees of Kenvue Brands LLC/Johnson \& Johnson (J\&J) subsidiaries, contractors of Kenvue/J\&J, and the families of each).
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Salus Research, Inc.
Fort Wayne, Indiana, 46825, United States
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