What gets tested, and by whom
Manufacturing standards and third-party screens for the Glucotide run currently shipping, written without the laboratory vocabulary that usually hides how little a page is saying.
The facility
Production happens in a facility registered with the Food and Drug Administration and operating under current Good Manufacturing Practice rules. Two things follow from that and it is worth being precise about both. Registration means the FDA knows the plant exists and can inspect it. cGMP compliance covers process control: identity of incoming raw material, cleaning between runs, batch records, and holding a retention sample of every lot. Neither one is a statement that the product works.
The third-party screens
Each run is sampled and sent to Wrenfield Assay Group, LLC, an ISO/IEC 17025 accredited laboratory that has no commercial interest in the outcome. Three screens are run on every lot.
| Screen | Method | Result on lot QG-2608-R114 |
|---|---|---|
| Identity and assay | HPLC-UV identity assay | 98.7% |
| Heavy metals | ICP-MS, four elements | < 0.5 ppm |
| Microbial | Plate count and pathogen screen | Within USP <2021> and <2022> limits |
What the assay figure does and does not tell you
An identity assay confirms that the material in the capsule is what the batch record says it is, at the declared strength for the run. It does not confirm a milligram figure per nutrient for the public, because the manufacturer does not publish that breakdown. We are not going to convert an assay percentage into a dose table and present it as a label. That would be the same fabrication we criticise elsewhere on this site, dressed in a lab coat.
Retention samples
A sealed sample of each lot is held for the full shelf life of the product plus one year. If a question about lot QG-2608-R114 comes up in eighteen months, there is physical material to test rather than a memory of a test.
What is not tested
Nobody has run a clinical trial on this product. There is no published study measuring what Glucotide does to fasting glucose or to A1c in humans, and the testing described on this page is quality control, not evidence of effect. Those two things get blurred together constantly in this category, and blurring them is how buyers end up disappointed.