Taking a daily supplement of sodium hyaluronate for 3 months may help keep your face from getting overly oily during seasons when it usually gets shinier, like summer or spring.
Claim Language
Language Strength
definitive
Uses definitive language (causes, prevents, cures)
The claim uses the verb 'causes' which implies a direct, deterministic effect, and 'significant attenuation' which reinforces a strong, measurable outcome — both are definitive language indicating causation rather than association or probability.
Context Details
Domain
medicine
Population
human
Subject
Oral sodium hyaluronate (120 mg/day for 12 weeks)
Action
causes
Target
a significant attenuation of seasonal increases in facial sebum levels in healthy Caucasian adults
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 sodium hyaluronate improves skin hydration, barrier function and signs of aging: a randomized, double-blind, placebo-controlled trial in 150 healthy adults
This study gave people 120 mg of sodium hyaluronate daily for 12 weeks and found their skin produced less oil, just like the claim said it would.