Impact of HLNatural Immune Supplement on Colds
Public ClinicalTrials.gov record NCT04103099. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Evaluation of the Impact of the HLNatural, Inc. Immune Support Product in Reducing the Length of Cold Symptoms in Adults Suffering From the Common Cold
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
According to the Centers of Disease Control and Prevention (CDC) adults will have an average of 2-3 colds per year. Most colds will last approximately 7-10 days. The symptoms of colds could include cough, sore throat, runny nose, body aches, fevers, headaches and fatigue. A cold can affect your activity such as going to work, interrupting your sleep and your day to day activities. The test product contains all natural ingredients which have been combined into a powder to be taken in water at the sign of a cold.
Study identification
- NCT ID
- NCT04103099
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 200 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 15, 2019
- Primary completion
- Aug 14, 2020
- Completion
- Aug 14, 2020
- Last update posted
- Nov 14, 2021
2019 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Hawthorne Effect, Inc. | Lafayette | California | 94549 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04103099, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 14, 2021 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04103099 live on ClinicalTrials.gov.