Tested by independent labs. Published in plain English.
Every batch of Manful is third-party tested for purity, potency, heavy metals, and contaminants. We publish the results.
Every batch. Every ingredient. Independently verified.
Before any Manful product ships, every batch is tested by an ISO-accredited third-party lab. We test for label-claim potency, heavy metals (lead, cadmium, arsenic, mercury), microbiological contaminants, and pesticide residues.
Test certificates are linked from every product page. If a batch doesn't pass, it doesn't ship. Period.
Six categories. Every batch.
Manful is built to support the systems that compound over decades — not just the ones you feel today.
Purity
No artificial colors, flavors, sweeteners, or preservatives. Every ingredient earns its spot.
Potency
We test that every batch actually contains the doses listed on the label, within ±5%.
Heavy metals
Tested below California Prop 65 thresholds for lead, cadmium, arsenic, and mercury.
Microbiological
Tested for total aerobic count, yeast/mold, E. coli, salmonella, and staphylococcus.
Pesticides
Screened against a 200+ pesticide panel for botanical and food-derived ingredients.
Allergens
Manufactured in a gluten-free, dairy-free, peanut-free facility. Allergen testing per batch.
What we test, where we test, why it matters.
Don't see yours? We answer every email — usually within a day.
Where can I find test results?
The latest batch test certificate is linked from each product page. Historical results are available on request.
What does NSF certified mean?
NSF certifies that our manufacturing facility meets independent good-manufacturing-practice (GMP) standards. It's audited annually.
Are you USDA organic?
We use organic-certified inputs where the certification meaningfully affects quality (botanical extracts, food powders). For minerals and synthetic vitamins, organic certification doesn't apply.
What's the shelf life?
24 months from manufacture, when stored in a cool, dry place. Each container is printed with a manufacture date and expiration date.
Still have a question? Get in touch.