Health & Medical Content Policy
Health information on this site follows one governing principle: we would rather be usefully cautious than impressively certain. This page explains how health content is produced and where its limits are.
Who writes and reviews health content
Articles are researched and written by the Kerassentials Health Editorial Team against authoritative public sources — NIH (including the Office of Dietary Supplements and NCBI/PubMed literature), CDC, FDA, and peer-reviewed journals. We do not employ or invent a medical reviewer, and we will not attach a clinician's name to content to manufacture authority. Where a page discusses medicine, its sourcing is visible in the references section or the references hub.
What this site is not
Kerassentials Health is not a medical service. Nothing here is medical advice, diagnosis or treatment. Product discussions describe a cosmetic-style topical and the literature around its ingredients; they do not recommend treating any diagnosed condition with any product, and they never substitute for a clinician who knows your history.
How we handle uncertainty
- Ingredient evidence is graded (in-vitro, animal, small human trials, robust trials) and the grade is stated.
- The absence of finished-product clinical trials is stated wherever efficacy is discussed.
- Safety content lists "ask a professional first" groups explicitly: pregnancy and nursing, diagnosed conditions, relevant medications, allergy histories, diabetes, pediatric use.
- Red-flag symptoms (dark nail streaks, pain, bleeding, rapid change) are routed to professional care, never to self-treatment.
When we say "see a professional"
Our threshold is low and our list is public, repeated on the safety page: if you are pregnant or nursing, treating a diagnosed condition, on relevant medication, allergic to fragrances or tree nuts, diabetic, or seeing a red-flag nail change, a licensed clinician is the right first stop — before any product, including the ones we cover favorably.
Editorial overlap with commerce
Health pages may link to commercial pages on this site, but health conclusions are written to stand alone; removing every purchase link would change none of them. That is the test, drawn from our editorial policy, and it is audited on every revision.