OtherNo.071
Hyaluronic Acid
Skin hydration, joint lubrication (marketed).
Typical / RDA120–240 mg
Upper limitGenerally safe
EvidenceLimited
How to take it
Timing AnytimeFood OptionalForm Oral / topical
What to know
Holds water in skin and joints. Topical and injectable forms have clearer uses; oral evidence for skin is small and preliminary. Generally well tolerated.
Interactions & cautions
- Low risk; oral skin benefits are not well established.
Do you actually need it?
Topical/injection has better evidence than oral pills.
Reference values: NIH Office of Dietary Supplements, adult general population. Educational information only — not medical advice. Confirm with a healthcare professional.