The short answer
Early trials examine knee and skin outcomes; effects and optimal dose remain uncertain.
- Evidence and scope
- Emerging evidence
This status does not grade the ingredient for every goal, outcome, or person.
- Important limitation
- Early human findings are hypothesis-generating; efficacy, long-term safety, and optimal dose remain uncertain.
- Before deciding
- Key concern: Cancer treatment, pregnancy, allergies, and product molecular weight require review.
01 / PRACTICAL GUIDE
Dose, absorption, and combinations
These are indication-specific reference or studied ranges—not a personalized prescription. Start with the objective, then check the form, label, medicines, and health conditions.
Reference or studied range—not a personalized prescription. The product label or a clinician may specify a different dose.
Dose source ↗More is not automatically better. A clinician or product label may specify a different amount.
Water-soluble or readily water-dispersible. This does not mean excess is always harmless.
May be taken with or without food.
Cancer treatment, pregnancy, allergies, and product molecular weight require review.
Dose and use links lead to primary or official source material. Search links are discovery tools, not proof that every returned paper applies.
02 / EVIDENCE
What the research says
We keep supportive, mixed, negative, safety, and contextual findings together. The headline never replaces the underlying papers.
These are audited counts for this JIVANA collection, not search-result totals. Participants are counted once when multiple papers use the same cohort; review papers are not added again to participant totals.
Open the research timelineResearch timeline+
Entries are ordered by publication year. A study period appears only when the source reports it.
Oral hyaluronic acid for osteoarthritis and low back pain
Nine of 11 articles reported at least one improvement and adverse effects were rare and mild, but the review did not establish pooled effect size, trial quality, or protection of cartilage. Low-back-pain evidence came from one study.
Study design and methods
- Design
- Systematic review of 11 articles
- Population
- 597 adults, 10 studies in osteoarthritis and 1 in low back pain
- Intervention
- Oral hyaluronic acid 30–300 mg/day
- Outcome
- Pain, WOMAC, joint function, quality of life, stiffness, and inflammatory markers
Funding or conflict note: The review reported no conflicts of interest.
Unscreened discovery appendix—not evidence5 candidate publicationsSearch run: Aug 21, 2026
Complete for the displayed PubMed query at the search timestamp—not for all databases or every possible synonym. Candidates can be irrelevant, duplicate the same study, or report negative findings. They are never summed as evidence or participants until screened.
03 / SOURCES
Start with the source material
The live search is for discovery only. Search-result counts change and are not included in the audited totals above.
Recent PubMed discovery recordsDirect links to the first 12 records returned by the reproducible search. These are discovery candidates—not reviewed summaries or a count of supportive findings.
- Oral Hyaluronic Acid Supplement: Efficacy in Skin Hydration, Elasticity, and Wrinkle Depth Reduction.Amin P, Sarabi A, Choe S et al. · 2025 · Journal of drugs in dermatology : JDD · PMID 40911749Open on PubMed ↗
- A Multicenter, Randomized, Double-Blinded, Placebo-Controlled Clinical Trial to Evaluate the Efficacy and Safety of a Krill Oil, Astaxanthin, and Oral Hyaluronic Acid Complex on Joint Health in People with Mild Osteoarthritis.Hill WS, Dohnalek MH, Ha Y et al. · 2023 · Nutrients · PMID 37686801Open on PubMed ↗
- The effects of an oral preparation containing hyaluronic acid (Oralvisc®) on obese knee osteoarthritis patients determined by pain, function, bradykinin, leptin, inflammatory cytokines, and heavy water analyses.Nelson FR, Zvirbulis RA, Zonca B et al. · 2015 · Rheumatology international · PMID 24899570Open on PubMed ↗
- Oral administration of polymer hyaluronic acid alleviates symptoms of knee osteoarthritis: a double-blind, placebo-controlled study over a 12-month period.Tashiro T, Seino S, Sato T et al. · 2012 · TheScientificWorldJournal · PMID 23226979Open on PubMed ↗
- Effect of a natural extract of chicken combs with a high content of hyaluronic acid (Hyal-Joint) on pain relief and quality of life in subjects with knee osteoarthritis: a pilot randomized double-blind placebo-controlled trial.Kalman DS, Heimer M, Valdeon A et al. · 2008 · Nutrition journal · PMID 18208600Open on PubMed ↗
04 / EXPERT CONTEXT
Expert context—not evidence
Expert positions are dated context—not scientific evidence. They never raise the evidence status or become consensus by repetition.
No direct, source-verified endorsement is currently recorded. Research authorship or discussion alone is not treated as endorsement.