Quality

How each SlimTide lot is tested

SlimTide is manufactured in an FDA-registered, cGMP-compliant facility in the United States, and every production lot is screened by Coldbrook Assay Sciences, an ISO/IEC 17025 accredited third-party laboratory with no commercial interest in the result.

What cGMP actually requires

Current Good Manufacturing Practice is the framework the FDA applies to dietary supplement facilities. It is a documentation standard as much as a hygiene standard: a compliant facility has to be able to show, for any batch, where each raw material came from, what it was tested for on arrival, what equipment touched it, who signed off each stage, and what the finished product assayed at. An FDA-registered facility is one the agency knows about and can inspect. Neither term means the agency approved the product, and no dietary supplement is FDA approved.

The assays run on every lot

Lot-level testing programme

Test	Method	Threshold on the 2026 lot
Fibre identity and assay	HPLC-RID	99.2% inulin purity
Culture viability	Plate count at release and at expiry	Meets label count
Heavy metals	ICP-MS, lead, arsenic, cadmium, mercury	Below 0.4 ppm, pass
Microbiological limits	Total plate count, yeast, mould, pathogens	Within USP <2021> limits
Pesticide residue	GC-MS/MS multiresidue screen	Not detected
Allergen screen	ELISA	No milk, soy, wheat, egg, peanut or tree nut detected

The results for the current cycle are recorded under certificate CB-26-11740 and summarised on the verification page alongside batch STD/26-0447-B. A copy of the certificate is available to any customer who asks for it by email.

Sourcing

Chicory root inulin is a European-grown raw material; potato resistant starch is sourced from North American suppliers. Both arrive with a supplier certificate that is then re-tested on receipt rather than accepted on paper, which is the step most often skipped in this industry. The live cultures are supplied as characterised strains with documented identity, because a culture blend whose strains are not individually characterised cannot be verified for viability at all.

Storage, which is the part buyers control

Testing at release is only half the story for a product containing live organisms. Viability declines with heat and time, which is why the label asks for refrigeration after opening and why we hold stock in one climate-controlled facility rather than spreading it across a reseller network. It is also the practical reason SlimTide is not on marketplaces: the storage history of a bottle that has passed through three unrelated warehouses cannot be established, and no certificate covers it.

What testing does not tell you

A clean certificate of analysis means the capsule contains what the label says and nothing it should not. It says nothing about whether the formula will work for you. Those are separate questions and we would rather keep them separate: the mechanism page covers the second one, including where the evidence is thin. The ingredient panel sets out what the label discloses.

Laboratory names, certificate identifiers and screening thresholds published on this portal describe the production lot held by Northlight Provisions for distribution documentation purposes. They are not clinical findings and do not describe an outcome for any individual.