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NOBO Postbiotic for Axillary Odor

This study is testing a new product called NOBO, which is a yeast-based postbiotic (a beneficial product made by yeast). The goal is to see if NOBO can help control underarm (axillary) odor in healthy adults. Researchers will compare how well NOBO works against a placebo (an inactive spray) by having participants use each on a different underarm. You can join if you are between 18 and 70 years old, have healthy skin under your arms, and believe you have body odor. The study wants to find out if NOBO reduces your self-perceived odor compared to the placebo.

Study design
This is an interventional study with 14 participants. You will be randomly assigned to use NOBO on one underarm and a placebo on the other.
What's involved
You will use NOBO and a placebo spray, and self-assess your body odor and skin irritation at specific times over a few days.
Compensation
Not stated in the trial record.
Follow-up
Your odor will be assessed at baseline, immediately after the first application, and then in the evenings of Day 1, Day 2, and Day 3.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT07726238

A Third Proof-of-Concept Study to Evaluate the Efficacy of NOBO, a Novel Postbiotic, in Controlling Axillary Odor in Healthy Adults

Active, Not Recruiting
NAAges 18–70InterventionalTreatment
Kingdom
~14 participants
Updated 2026-07-31 on ClinicalTrials.gov
What's tested:NOBO postbioticPlacebo

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Axillary odor self assessment (comparative)
Measured over At baseline (before application), immediately after first application, Day 1 PM, Day 2 PM, and Day 3 PM

Conditions

Body Odor

Explore related trials

Body Odor

Where it's being run

1 sites across 1 states
New York1

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Age: The subject is an adult between 18 and 70 y.o.
Skin health: The subject has no active skin conditions or lesions in the axillary region and no existing skin conditions (e.g., eczema, psoriasis, contact dermatitis).
Skin allergies: The subject has no known allergies to skin treatment products or cosmetics, toiletries, and/or topical drugs.

Exclusion

Subject is pregnant, nursing, or planning to become pregnant in the next 6 months.
Subject is an insulin-dependent diabetic.
Subject has been diagnosed or treated for cancer in the past 5 years.
Subject is currently using or has not used in the past two weeks any systemic antibiotics.
Subject is currently using or used within the last month any topical medications, over-the-counter (OTC) or prescription products on the underarms.
Subject is currently taking or plans to take during the study any anti-inflammatory for a chronic condition (except 81 mg-Aspirin per day), immunosuppressant, antihistamine, or sedative medications (i.e. containing antihistamines like Tylenol PM, Nyquil, etc.).
Subject is currently participating in another underarm clinical trial. Subjects may participate in other studies as long as the same test sites are not used or are testing similar products.

What this trial measures

  • Axillary odor self assessment (comparative)At baseline (before application), immediately after first application, Day 1 PM, Day 2 PM, and Day 3 PM

    Comparative assessment is simply a measurement of which axilla (left or right) smells worse.