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Safety
Every batch is checked for microbiological quality.
Finished-product testing is used to verify that Lester meets our specifications before the gummies are released.
- Total aerobic microbial count
- Yeast and mold
- E. coli
- Salmonella
Quality & testing
The Lester Standard.
The testing and quality standards behind every pouch.
Research-backed phytosterols
A clinically studied ingredient
Third-party tested
Independent finished-product testing
1,800 mg per day
Actual phytosterols in four gummies
The Lester Standard
What we test.
Every batch is made to defined standards for potency, purity and microbiological quality.
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Heavy metals
We screen Lester for heavy metals.
Plant-derived ingredients can contain naturally occurring heavy metals absorbed from soil, water and the surrounding environment. We test the finished product against our quality specifications.
- Lead
- Mercury
- Cadmium
- Arsenic
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Potency
We measure what is present in the finished gummies.
Each daily serving is formulated to provide 1,800 mg of actual, free-equivalent phytosterols. Finished-product testing verifies the phytosterol content against the amount stated on the label.
Two gummies provide 900 mg. Four gummies provide 1,800 mg.
- Phytosterol content
- Finished-product testing
- Verification against label specifications
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Experience
Quality includes the product you take every day.
Finished gummies are checked for appearance, flavour, texture and consistency so each batch meets the specifications established for Lester.
- Appearance
- Mixed-berry flavour
- Aroma
- Texture
- Gummy weight
- Package integrity
Independent verification
We work with Alkemist Labs.
Alkemist Labs is an independent laboratory specialising in botanical and nutraceutical testing. It is ISO/IEC 17025 accredited and provides analytical testing for potency and contaminants in dietary supplements.
For Lester, third-party testing provides independent verification of the quality specifications behind the finished product.
Alkemist Labs
Independent testing for potency and purity.
Laboratory
Independent U.S. laboratory
Testing is performed outside Lester.
Accreditation
ISO/IEC 17025
Accredited for testing within its stated scope.
Verification
Potency testing
Independent measurement of active ingredient content.
Screening
Contaminant testing
Testing for specified unwanted substances.
Transparency
Testing only matters if the results can be reviewed.
A Certificate of Analysis records the tests performed on a batch and the results against the relevant product specifications.
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Phytosterol potency
The measured phytosterol content is reviewed against the label specification.
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Heavy metals
Lead, mercury, cadmium and arsenic results are reviewed against product specifications.
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Microbiological testing
Microbial results are reviewed against the limits established for the finished product.
Certificates of Analysis
See the results.
Lester Cholesterol Support Gummies
Phytosterol potency — PASS
Heavy metals — PASS
Microbiological testing — PASS
Glossary
Plain English, where it helps.
COA
Certificate of Analysis. A document showing laboratory test results for a particular sample or production batch.
ISO/IEC 17025
An international standard for the competence of testing and calibration laboratories.
Potency
The measured amount of an active ingredient present in a product.
ppm
Parts per million. A unit commonly used to report very small concentrations of substances in laboratory testing.
Our commitment
Supplement quality should be verified, not assumed.
Lester uses independent laboratory testing to verify the potency and purity of the finished product. The goal is simple: what is stated on the label should be what is in the gummies.