Overview
Glycosaminoglycan supporting skin hydration and joint lubrication.
- Microbial fermentation
- Low MW HA (oral)
- Topical HA
- Intra-articular HA (Rx)
Mechanism of action
Holds water in extracellular matrix; intra-articular HA cushions joints.
- · ECM hydration
Effects on the body
Organ system effects
Improves hydration and elasticity.
IA injections reduce OA pain.
Evidence-based benefits
Improves skin hydration with oral 120–240 mg/d
Moderate evidenceReduces knee OA pain
Moderate evidencePotential side effects
- · Hyaluronic Acid is generally well-tolerated at evidence-based doses
- · Mild GI discomfort (nausea, loose stools, or bloating) possible at higher intakes
- · Headache or transient fatigue reported by a small fraction of users
- · Allergic or hypersensitivity reaction (rash, itching, swelling)
- · Sleep disturbance if taken late in the day
- · Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing
Drug interactions
Supplement interactions
- Collagen peptidesProvides amino acid substrate for connective tissue synthesis.
- Vitamin CRequired cofactor for collagen hydroxylation.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Hyaluronic Acid — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Hyaluronic Acid third party tested NSF
CapsulesPre-measured Hyaluronic Acid capsules — easiest for travel and consistent daily dosing without scoops or scales.Hyaluronic Acid capsules
PowderBulk unflavored Hyaluronic Acid powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Hyaluronic Acid powder unflavored
Best sellersMost-purchased Hyaluronic Acid products on Amazon — a quick way to see what's reviewed widely before you commit.Hyaluronic Acid best sellerScientific evidence9Show studiesHide studies
Oral hyaluronic acid for knee osteoarthritis
Oe M, et al.
12-month RCT of oral HA 200 mg/d in knee OA.
Improved WOMAC pain and function vs placebo.
PubMed: Hyaluronic Acid — Improves skin hydration with oral 120–240 mg/d
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PubMed: Hyaluronic Acid — Reduces knee OA pain
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