Taking a daily supplement of hyaluronan for 12 weeks can make your skin feel tighter and more bouncy on your forehead, arms, and waist—especially at your waist, where it improved by 38% compared to people who didn’t take it.
Claim Language
Language Strength
definitive
Uses definitive language (causes, prevents, cures)
The claim uses 'significantly improves' and 'greatest improvement observed', which imply a direct, measurable, and certain cause-effect relationship rather than possibility or correlation. These phrases suggest the intervention directly causes the outcome with statistical certainty.
Context Details
Domain
nutrition
Population
human
Subject
Healthy Asian adults aged 35–64
Action
significantly improves
Target
skin elasticity in the forehead, arms, and waist, as measured by Cutometer® R0 (skin distension)
Intervention Details
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.
Evidence from Studies
Supporting (1)
Oral Hyaluronan Relieves Wrinkles and Improves Dry Skin: A 12-Week Double-Blinded, Placebo-Controlled Study
This study gave people 120 mg of hyaluronan daily for 12 weeks and found their skin became more elastic, just like the claim says. It didn’t measure exactly how much better each body part got, but it did prove the supplement helped skin elasticity overall.