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Quality & Testing

Tested seven ways. Verified before it ships.

Every batch of every product is independently tested for heavy metals, pesticides, microbes, identity, potency, solvents, and mycotoxins — by labs with no commercial stake in the outcome. Receipts on demand.

See how we test ↓

Quality, in numbers.

  • 7 Independent tests run on every batch
  • 100% Of products third-party lab verified
  • 0 Batches shipped without a passing COA
What We Test For

Seven tests. Every batch. No exceptions.

Standards drawn directly from the U.S. Pharmacopeia (USP), AOAC, and California Prop 65. Every batch passes — or it doesn't ship.

  • 01

    Heavy Metals

    Every batch is screened by ICP-MS for the four FDA-regulated heavy metals — lead, arsenic, cadmium, and mercury — against California Prop 65 and USP <2232> limits.

    Pb · As · Cd · Hg
  • 02

    Pesticide Residues

    We screen for the broad pesticide panel covered by USP <561>, including organophosphates, organochlorines, and synthetic pyrethroids — even though our farms are certified organic and don't use them.

    USP <561> panel
  • 03

    Microbial Contamination

    Total aerobic count, yeast & mold, E. coli, Salmonella, and Staphylococcus aureus — tested per USP <2021> and <2022> standards. Zero tolerance for pathogens.

    USP <2021> · <2022>
  • 04

    Identity Verification

    HPLC fingerprinting and macroscopic/microscopic ID confirm that what's in the bottle is exactly the species stated on the label — no adulterants, no substitutions.

    HPLC + Botanical ID
  • 05

    Active Standardization

    Potency assays verify the level of bioactive compounds — withanolides for ashwagandha, curcuminoids for turmeric, beta-glucans for mushroom blends. We publish the standardized minimums on every label.

    Bioactive %
  • 06

    Solvent Residues

    Residual solvent screening per USP <467> ensures that any solvents used during extraction (ethanol, water) are below the strictest pharmacopeia thresholds.

    USP <467>
  • 07

    Mycotoxins & Aflatoxin

    Aflatoxin B1, B2, G1, G2 and ochratoxin A screening per AOAC methods — critical for botanical raw materials, especially adaptogens stored long-term.

    Aflatoxin · Ochratoxin
The Process

From farm to lab to bottle to you.

Four checkpoints, every single time. No shortcuts, no exceptions, no exemptions.

  1. 1

    Source

    Herbs are grown on certified-organic, regenerative-verified farms — primarily in India for Ayurvedic adaptogens. We work with growers who hold supply-chain transparency awards (e.g. Sabinsa Corporation's farm-to-capsule program).

  2. 2

    Manufacture

    Raw extracts are processed in cGMP-compliant facilities under FDA 21 CFR Part 111 — the same regulatory framework that governs pharmaceutical manufacturing. Every step is documented and auditable.

  3. 3

    Independent Lab

    Every batch is sent to a third-party lab — independent of our manufacturer and us — for the seven tests above. The lab issues a Certificate of Analysis (COA) before any product leaves the warehouse.

  4. 4

    Bottle to You

    Only batches with a passing COA on every test get bottled, sealed, and shipped. Want the COA for the bottle in your hand? Email us your batch # — we'll send it the same day.

The Lab Behind the Bottle

Tested where it’s sourced.

Every Tribe batch is tested at Sabinsa Corporation’s cGMP labs in India — under USP and AOAC methodologies, the same standards the FDA uses. One certified facility. Seven tests. Every batch.

  • Sabinsa Corporation

    Sabinsa Corporation

    Farm-to-capsule testing · 7 USP/AOAC test methods · cGMP certified

    All seven of our batch tests — heavy metals, pesticides, microbial, identity, potency, solvents, and mycotoxins — are run inside Sabinsa's cGMP-compliant analytical labs in India. Sabinsa was awarded the 2018 Supply Chain Transparency Award for their farm-to-capsule approach. Their facilities are certified Kosher, Halal, and operate under USP and AOAC methodologies — the same standards used by the FDA.

    Visit Sabinsa Corporation ↗
Sabinsa: farm to capsule, transparently.
A Story From the Source

Sabinsa: farm to capsule, transparently.

For every one water truck that goes to the farm, two go to the local village.

— Sabinsa Corp · India

Our primary herbal-extract supplier, Sabinsa Corporation, was recognized in 2018 with the Supply Chain Transparency Award for their strict farm-to-capsule approach. Most of their facilities are in India — close to where these ancient remedies and traditions came from.

Beyond manufacturing, Sabinsa funds the rural farming communities they source from. They've built schools, paved roads, and committed to fair wages — for every one water truck that goes to the farm, two go to the local village. Their facilities are certified Kosher and Halal.

That's the kind of partner we work with. Anything less doesn't make it into a Tribe bottle.

Visit Sabinsa Corp ↗
Standards We Hold

Independently certified, end-to-end.

Six third-party bodies vet every part of our supply chain — from farm to formulation to giving back. Click any badge to verify.

Receipts on Demand

Want the test results for your bottle?

Every product has a Certificate of Analysis. Email us your batch # (it's printed on the bottom of the bottle) and we'll send the COA the same day.

Request a COA →Read our editorial standards →

Last reviewed: · Certified B Corporation™ · USDA Organic · Non-GMO Project Verified · Orthodox Union Kosher · Gluten-Free (GFCO) · 1% for the Planet