Sources and Evidence Policy

Source priorities

1. Physical or supplied product labeling: best for understanding the wording visible in a particular packaging version; it is not clinical proof of product performance.
2. Regulators and public-health agencies: useful for general legal standards, safety guidance and established clinical recommendations.
3. Professional societies: relevant for practical nail-care methods and when a clinician should evaluate symptoms.
4. Seller's own documentation: best for current prices, offers, refund procedures and the vendor's stated contact channels, but may contain unverified promotional claims.

Important limitation: conflicting ingredient lists

Promotional Kerafirm Pro descriptions include ingredients absent from the supplied label. We do not silently combine those lists. We request readers check the physical packaging they receive and reach the vendor for clarification.

Not all citations are endorsements

Citing the CDC for fungal nail infection does not mean the CDC endorses Kerafirm Pro. Referring to U.S. antifungal regulations does not establish that the commercial bottle is FDA approved, lawfully marketed for a particular disease, or clinically effective. Those are separate questions we have not independently resolved.

No invented testimonials or credentials

This website does not claim its editorial team is a licensed doctor, does not fabricate consumer reviews and does not reuse unsourced percentages as facts. We also do not present vendor warranty graphics as independently guaranteed outcomes.