EVERY BATCH, INDEPENDENTLY TESTED

Every XANDRO product is third-party tested, batch by batch, before it ships. No exceptions.

WHY IT MATTERS?

Every supplement sold here is required to be tested under HSA guidelines. What varies is how. Some brands rely on the COA their raw material supplier provides and stop there. Some test the raw materials but not the finished product. We send every finished batch to an independent lab ourselves, and we publish what comes back. Not a sample batch. Not a supplier's word for it. Every batch, tested independently, and shown to you.

Quality & Safety

WHAT WE TEST FOR

Heavy Metals

Every batch is screened for lead, arsenic, cadmium, and mercury against USP and international limits. These metals accumulate in the body with repeated exposure, so a supplement you take daily has to clear a stricter bar than something you eat once.

Microbial Presence

Independent labs check for bacteria, yeast, mold, and pathogens like E. coli and Salmonella. Contamination from poor manufacturing or storage isn't something you can see or taste, which is exactly why it gets verified rather than assumed.

Stability

We test how each formula holds up over time and across storage conditions, so the potency on day one is still close to the potency on the day you take your last dose.

HPLC Purity

High-Performance Liquid Chromatography measures the exact amount of active ingredient in each batch, down to the milligram. This confirms what's on the label matches what's actually in the capsule.

Who Tests It

INDEPENDENT HSA-CERTIFIED LABS ONLY

We work exclusively with HSA-certified labs, including UGENE Labs and SGS, based in Singapore and overseas. These labs have no stake in our results. They test what's in the product, not what we say is in it.

The Testing Process

FROM RAW MATERIAL TO FINISHED BATCH

BEFORE PRODUCTION

Every raw material batch is checked against its Certificate of Analysis (COA) before it enters blending.

AFTER PRODUCTION

The finished batch is sent to an independent lab for full third-party testing.

RETENTION SAMPLES

A few units of every batch is stored under ambient conditions and checked periodically for stability, through to its expiry date.

HOW TO CHECK YOUR BATCH RESULT

Every bottle and box carries a batch number. To find your product's specific test results:

  1. Locate the batch number printed on your box or bottle.
  2. Pull up specific COA link for the product and search for your batch number.
  3. Every result posted is specific to that batch, not a general or representative sample.

Testing Isn't Occasional

CONTINUOUS TESTING AT SCALE

XANDRO tests hundreds of new formulas and batches every year. Testing isn't a final checkbox, it happens continuously, long before a product ever reaches a shelf.

WHAT HAPPENS IF A BATCH DOES NOT PASS

If a batch fails testing, we recall it. Our supply chain tracks every order at the batch level, so if a result ever comes back outside spec, we know exactly which batches and which orders are affected, and can act on it directly rather than issuing a blanket warning.

QUESTIONS

For testing guidelines, methodology, or questions about a specific batch, contact our Quality team directly at contact@xandrolab.com

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