How We Rank Source Reliability
- Product identification: the provided package artwork and Supplement Facts image.
- Seller terms: the vendor’s current order and support policy; these are seller claims, not independent certification.
- Independent research: public agency guidance and peer-reviewed human studies where relevant.
- Marketing and testimonials: claims that need verification, not automatic evidence of outcomes.
Primary Documents Used
- Seller product / sales information (assessed against supplied artwork and checkout references)
- Seller contact and returns policy
- NCCIH: diabetes and dietary supplements
- Peer-reviewed PEA systematic review and meta-analysis
- Oral alpha-lipoic acid systematic review on PubMed
- FDA: Is it really FDA approved?
- FDA: structure/function labeling claims
- NIDDK: peripheral neuropathy
What Sources Cannot Prove
A vendor image does not authenticate its manufacturing certifications. A trial of an ingredient is not a trial of an entire formulation. An unverified review is not a representative consumer sample. We make these distinctions throughout this website.
