Ingredient evidence library

Understand supplement ingredients before judging the formula

Our ingredient guides examine human research, studied dosages, evidence limitations, safety considerations, and whether findings can reasonably support a product's marketing claims.

Research categories

Areas covered by our ingredient research

Joint-support ingredients

Research related to mobility, cartilage, connective tissue, inflammation, and joint comfort.

Explore Joint Genesis ingredients →

Oral-health ingredients

Evidence concerning oral probiotics, gums, teeth, saliva, and the oral microbiome.

Explore ProDentim ingredients →

Prostate-support ingredients

Research examining ingredients marketed for urinary function and prostate health.

Explore ProstaVive formula →

Eye-health ingredients

Evidence related to retinal nutrients, visual function, oxidative stress, and healthy ageing.

Explore VisiFlora ingredients →

Hearing-support ingredients

Research concerning auditory health, circulation, oxidative stress, and hearing-related claims.

Explore AudiFort ingredients →

Evidence checklist

Questions we ask about every ingredient

A scientific citation alone does not prove that an ingredient or product works. The relevance, quality, dosage, population, and outcome of the research must also be examined.

Has the ingredient been studied in humans?
Was the studied dosage similar to the product dosage?
Were the results clinically meaningful?
Were findings replicated by independent researchers?
Does ingredient evidence apply to the complete formula?
Are there known safety concerns or interactions?

Ingredient evidence is not product evidence

A study on one ingredient does not automatically prove that a multi-ingredient supplement produces the same result. Formula dosage, ingredient combinations, manufacturing quality, and the studied population can materially affect the conclusion.

See the complete product analysis

Product reviews combine ingredient research with pricing, seller transparency, refund terms, safety considerations, and complete formula evidence.

Browse supplement reviews →