Grass-Fed Colostrum Testing
Quality Assurance & Transparency
At PrimoNourish, product quality and transparency are central to our commitment to customers.
Our Grass-Fed Bovine Colostrum Powder undergoes quality testing by the manufacturer and independent third-party laboratory testing. These evaluations cover important quality parameters, including IgG content, moisture, microbiological quality, and heavy metals.
The reports below document testing performed on the identified production lot.
Independent Third-Party Laboratory Testing
Our colostrum powder was independently tested by Certified Laboratories (Certified Group - Tustin), an ISO/IEC 17025:2017-accredited laboratory.
Independent testing included:
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Microbiological testing, including screening for specified pathogens
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Heavy-metal screening for arsenic, cadmium, lead, and mercury
The reported heavy-metal results were within the specifications listed in the laboratory report.
Independent testing by an ISO/IEC 17025-accredited laboratory included microbiological analysis and heavy-metal screening. The reported heavy-metal results were within the laboratory's listed specifications.
Manufacturer Certificate of Analysis
The manufacturer's Certificate of Analysis documents additional quality testing performed for the production lot, including:
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IgG Potency: Manufacturer-reported IgG content of 20.80%, meeting the stated minimum specification of 20%.
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Moisture: Loss on drying meets the manufacturer's specification.
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Physical Characteristics: Appearance conforms to the manufacturer's specification.
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Microbiological Quality: Testing for specified microorganisms.
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Heavy Metals: Screening for arsenic, cadmium, lead, and mercury.
Batch Quality Verification Summary
Identity / Physical
| Test | Result | Specification |
|---|---|---|
| Appearance | Conforms | Light yellow powder |
Assay / Potency
| Test | Result | Specification |
|---|---|---|
| Loss on Drying | 6.90 % | NMT 7% |
| Total IgG | 20.80 % | NLT 20% |
IgG content meets potency specification.
Microbiology
| Test | Result | Specification |
|---|---|---|
| Total Plate Count | < 5,000 cfu/g | < 5,000 cfu/g |
| E. coli | Absent cfu/10g | Absent cfu/10g |
| Staphylococcus aureus | Absent cfu/10g | Absent cfu/10g |
| Salmonella | Absent cfu/10g | Absent cfu/10g |
| Total Yeast and Mold | < 100 cfu/g | < 100 cfu/g |
Heavy Metals
| Contaminant | Result | Specification |
|---|---|---|
| Lead (Pb) | < 0.1 ppm | ≤ 1.0 ppm |
| Arsenic (As) | < 0.1 ppm | ≤ 1.0 ppm |
| Cadmium (Cd) | < 0.1 ppm | ≤ 1.0 ppm |
| Mercury (Hg) | < 0.1 ppm | ≤ 1.0 ppm |
All results conform to established safety specifications.
Why These Tests Matter
These quality evaluations provide information about important product characteristics:
✓ Manufacturer-reported IgG content and potency
✓ Moisture levels and powdered-product quality
✓ Microbiological quality and hygiene
✓ Heavy-metal contamination levels
✓ Additional quality assessment through independent laboratory testing
Transparency Note
These quality evaluations provide information about important product characteristics:
✓ Manufacturer-reported IgG content and potency
✓ Moisture levels and powdered-product quality
✓ Microbiological quality and hygiene
✓ Heavy-metal contamination levels
✓ Additional quality assessment through independent laboratory testing
Transparency Note
To support transparency while protecting proprietary supplier information, PrimoNourish shares manufacturer-reported quality results alongside independent third-party laboratory findings.
Testing results apply to the identified production lot and samples tested.