Tier 3 — preclinical
Safety of Hyaluronan 35 in Healthy Human Subjects: A Pilot Study
Nutrients
2019
11(5):1135
Bibliography
- PubMed
- PMID 31121841
- PubMed Central
- PMC6566413
- Trial registry
- View on ClinicalTrials.gov Registered trial — results not yet published in a peer-reviewed journal.
- Funding
- Major support from NIH P01 HL107417-S1 with additional NIH grants and a Mikati Foundation grant.
- Competing interests
- The paper reports that funders had no role in study design, data collection, analysis, interpretation, writing or publication decisions.
Study snapshot
| Design | Prospective open-label human safety and tolerability pilot |
|---|---|
| Model | Healthy adults |
| Sample | n=20 |
| Intervention | Pharmaceutical-grade 35 kDa sodium hyaluronate 140 mg/day orally |
| Duration | 7 days dosing; follow-up to day 28 |
| Endpoints | Adverse events; Clinical chemistry; Metabolic function; Gut permeability; Stool microbiome composition |
What the study showed, in plain terms
Key findings
What this study can and cannot tell us
Citation network
Articles citing this research paper
Biohack Blueprint analyses that reference this study in their evidence base.
- Hyaluronic Acid for Dry Eyes: Does an Oral Supplement Help?Oral hyaluronic acid has one small randomized dry-eye trial—but it was tested as an add-on to topical HA, not as a replacement...Read analysis
- Hyaluronic Acid Side Effects & Safety: What Human Studies ShowEvidence-based oral hyaluronic acid safety guide covering side effects, daily use, interactions, pregnancy, studied doses and the limits of long-term data.Read analysis
- Hyaluronic Acid Dosage: 60, 100, 120 or 200 mg?Evidence-based oral hyaluronic acid dosage guide covering 60, 100, 111, 120, 140, 200 and 240 mg doses used in human skin, joint,...Read analysis
- Hyaluronic Acid Supplements: Benefits, Dosage, Safety & Evidence (2026)Oral hyaluronic acid supplement evidence for skin, joints, dosage, safety, molecular weight and absorption—separated from serum, fillers and injections.Read analysis
Editorial review
Reviewed by the Biohack Blueprint research team
Last verified



