Menthol and copaiba cream put to the test for joint pain relief
NCT ID NCT07767669
First seen Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time
Summary
This study tests whether a cream made with L-menthol and balsam copaiba oil can reduce symptoms of arthritis, joint pain, and muscle pain. Adults aged 20 to 65 with mild-to-moderate joint discomfort apply the cream or a placebo to affected areas three times daily for seven days. Researchers measure changes in pain, stiffness, and quality of life through questionnaires.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A topical cream containing L-menthol and balsam copaiba oil, applied to affected joints three times daily for seven days.
- What this could lead to
- If effective, this cream could offer a simple, non-drug option for easing everyday joint and muscle discomfort.
- What could go wrong
- The trial is small and short, and results may not apply to everyone. The cream may not outperform the placebo, and individual responses can vary.
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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80 people
The number who actually took part.
- Started
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Feb 2026
- Finished
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May 2026
- 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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20 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Be male or female * Be aged 20-65 * Has experienced issues regarding all of the following in the past four weeks: symptoms of arthritis of the knees, elbows, wrists, or ankles * joint pain and stiffness * Self-reported issues must be at least 3 out of 10 in severity, with 1 being the least severe and 10 being the most * Generally healthy - does not live with any uncontrolled chronic disease * If taking oral over-the-counter supplements or herbal remedies targeted at symptoms of arthritis, joint and muscle pain, has been consistently taking these for at least 3 months prior to starting the study, and is willing to maintain this routine for the study duration * Willing to avoid introducing any new forms of prescription medication or supplements that target symptoms of arthritis, joint and muscle pain for the study duration * Resides in the United States * Willing to maintain their current diet, sleep pattern, and activity levels for the duration of the trial Exclusion Criteria: * Anyone with pre-existing chronic conditions that would prevent participants from adhering to the protocol, including oncological and psychiatric disorders * Anyone with any allergies or sensitivities to any of the study product ingredients * Any women who are pregnant, breastfeeding, or trying to conceive (or who will be at any point during the study period) * Symptoms occurring in a joint that has been surgically repaired * Anyone unwilling to follow the study protocol * Anyone who identifies as having sensitive skin * Anyone with any history of skin cancer or any pre-cancerous lesions on their skin * Anyone with a history of substance abuse * Anyone who is currently a smoker or has been a smoker in the past 3 months * Currently partaking in another research study or will be partaking in any other research study at any point during this study's duration * Anyone with chronic skin conditions (e.g., dermatitis, eczema, psoriasis) * Anyone who currently takes prescription pain relief to manage their symptoms
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Conditions
The condition(s) this trial relates to.
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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Citruslabs
Las Vegas, Nevada, 89101, United States
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