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Every supplement scored on 50+ quality signals. Lab testing, manufacturing integrity, clinical dose validation, regulatory history, and intelligence drawn from a network of 155,000+ holistic practitioners who focus on root-cause healing. The complete picture, in one score.
Thorne Magnesium Bisglycinate
Clinical dose · Practitioner verified
Popular Brand Vitamin D
No independent testing found
Amazon Bestseller Turmeric
FDA warning · Lead detected
Most consumers have no way to verify what is actually in the bottle. Star ratings measure marketing. Gabriel measures the product.
of supplements have never been independently tested for label accuracy
FDA supplement records including warning letters, recalls, and adverse events
spent by the FDA on pre-market supplement testing. Companies self-police.
A supplement with 10,000 five-star reviews could contain heavy metals above safe limits, have an FDA warning letter, and deliver 30% less of the active ingredient than its label claims. The rating would never tell you.
Same supplement. Completely different picture.
"Great product! Feel so much better. Will buy again!"
✗ No lab testing data
✗ No heavy metal screening
✗ No FDA history
✗ No dose validation
✗ No inactive ingredient analysis
✗ No practitioner intelligence
Why this scored low:
Gabriel answers the questions that matter about every supplement. Lab results, clinical research, regulatory records, manufacturing standards, and intelligence from holistic practitioners, distilled into a single 0-100 score.
Gabriel checks for heavy metals, contaminants, and whether the label matches what is actually in the bottle. Independent testing, not marketing claims.
Manufacturing standards, facility certifications, and production quality. Where the product comes from matters as much as what is in it.
Bioavailable forms versus cheap alternatives. Whether each ingredient is in a form your body can actually absorb and use.
Gabriel compares every ingredient to published clinical research. If a study used 400mg and the product has 50mg, you will know.
FDA warning letters, recalls, adverse events, and enforcement history. A clean record matters.
Intelligence from 155,000+ holistic and root-cause practitioners. Naturopaths, functional medicine doctors, and integrative specialists who see patient outcomes every day.
Meets Gabriel's quality standards
Exceptional quality, strong practitioner backing
Top 1%. The highest standard in supplement quality
Gabriel compares every ingredient amount against published clinical research. If a study used 400mg and the product contains 50mg, you should know that before you buy.
Magnesium oxide. 4% absorption rate. You absorb roughly 4mg of elemental magnesium per serving.
Magnesium glycinate. 80% absorption rate. A full therapeutic dose in a highly bioavailable form.
Gabriel rates every inactive ingredient in every supplement. A product can have excellent active ingredients and still contain fillers or colorants that deserve scrutiny.
Cellulose, rice flour, silicon dioxide. Well-studied excipients with no known safety concerns at supplement doses.
Carrageenan, magnesium stearate, maltodextrin. Some evidence of concern. Not necessarily harmful, but worth knowing about.
Titanium dioxide, artificial colors (Red 40, Blue 1), BHT. Ingredients with documented safety concerns or restrictions in other countries.
Gabriel's intelligence draws on a network of 155,000+ holistic and root-cause practitioners: naturopathic physicians, functional medicine doctors, integrative specialists, acupuncturists, and clinical nutritionists. These are the practitioners who spend an hour with you instead of ten minutes. Who look for why you are sick, not just what to prescribe. Their collective clinical intelligence is woven into every score.
155,000+ practitioners who practice holistic, functional, and integrative medicine. Gabriel understands which brands and formulations these practitioners trust for their patients.
A product can pass every lab test and still be a mediocre formulation. Practitioners who see patient outcomes every day know which products actually work. That signal matters.
Many professional-grade brands distribute exclusively through licensed practitioners. Gabriel verifies authorized channels and flags products sold through unauthorized resellers.
Each source tells part of the story. Gabriel connects them to give you the complete picture.
FDA records, recall history, warning letters, adverse event reports, heavy metal testing, contaminant screening, and label accuracy verification across tens of thousands of products
Published clinical dosages cross-referenced against actual product formulations. Every ingredient checked against studied doses to flag underdosed and overdosed products
Facility standards, third-party certifications (NSF, USP, and others), production practices, inactive ingredient safety ratings, and supply chain verification
Clinical dispensary patterns, recommendation data, and brand endorsements from naturopaths, functional medicine doctors, and integrative specialists across a network of 155,000+ practitioners
Real consumer experiences across platforms with authenticity detection, cross-platform sentiment monitoring, and cost-per-serving value analysis
39,000+ supplements across 230+ categories.
Many professional supplement brands do not authorize Amazon sales. Unauthorized resellers list them anyway. No guarantee of proper storage, handling, or authenticity.
Sold by third-party resellers, not the brand
No cold-chain guarantee for probiotics and fish oils
Could be expired, improperly stored, or counterfeit
Brands explicitly warn against purchasing here
No dosing guidance or interaction screening
Returns mixed back into inventory
Direct from authorized distribution channels
Proper temperature-controlled storage and handling
Guaranteed authentic, unexpired product
Practitioner guidance on dosing and protocols
AI-powered interaction screening with your full stack
Often less expensive than reseller pricing
Xymogen, Standard Process, Designs for Health, Biotics Research, and dozens of professional brands explicitly state that products sold through unauthorized channels may be counterfeit, expired, or improperly handled. Gabriel connects you to their authorized distribution network.
The same clinical-grade formulas that holistic practitioners trust for their patients. Formulated for bioavailability and purity. Accessible through Gabriel's practitioner network.
Professional formulas from brands like Thorne, Pure Encapsulations, Designs for Health, and Metagenics. Formulated for bioavailability and purity that consumer brands rarely match.
Built-in savings through our dispensary network. For most products, you pay less than retail while getting a higher-quality formulation.
Your practitioner or Gabriel's AI builds personalized supplement protocols for your health goals. One click to add an entire protocol. Automatic refills. One place for everything.
Type a brand, product, or ingredient. Gabriel searches across 39,000+ scored products.
50+ quality signals from 15+ independent data sources. Lab testing, clinical evidence, regulatory records, practitioner intelligence, and real consumer experience. One score.
Gabriel surfaces higher-scoring alternatives with clinical dose matching and ingredient form analysis. See exactly what makes one product better than another.
Buy directly through Gabriel from verified distribution channels. Full supply chain integrity.