# Impact of HLNatural Immune Supplement on Colds

> **NCT04103099** · NA · COMPLETED · sponsor: **Hawthorne Effect Inc.** · enrollment: 200 (actual)

## Conditions studied

- Immune System Diseases

## Interventions

- **DIETARY_SUPPLEMENT:** HLNatural Immune

## Key facts

- **NCT ID:** NCT04103099
- **Lead sponsor:** Hawthorne Effect Inc.
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-10-16
- **Primary completion:** 2020-08-15
- **Final completion:** 2020-08-15
- **Target enrollment:** 200 (ACTUAL)
- **Last updated:** 2021-11-15

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04103099

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04103099, "Impact of HLNatural Immune Supplement on Colds". Retrieved via AI Analytics 2026-07-15 from https://api.ai-analytics.org/clinical/NCT04103099. Licensed CC0.

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