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Lab Testing Insights

Regulatory updates, testing guides, and quality assurance insights for supplement brands, cosmetic companies, and manufacturers.

Dietary Supplements

Ashwagandha Withanolide Testing: What '5% Standardized' Actually Means and How Labs Detect Adulteration

Most ashwagandha labels claim '5% withanolides' — but that number hides major variation. Learn how labs use HPLC and DNA barcoding to verify label claims.

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Lab Insights

Out-of-Specification Results in Supplement Testing: What FDA's cGMP Investigation Process Actually Requires

When a supplement test returns an OOS result, 21 CFR Part 111 requires a structured two-phase investigation. Here's what your lab must do.

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Dietary Supplements

Lead and Cadmium in Prenatal Vitamins: Why Heavy Metal Limits Are Far Stricter Than Brands Expect

California Prop 65 caps lead exposure at just 0.5 µg/day for reproductive toxicity. For prenatal supplement brands, that single number changes your entire testing program.

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Food Safety

Nutritional Facts Panel Testing: What Third-Party Labs Actually Measure — and Where Labels Most Often Fail

How nutritional facts panel testing works, what FDA's 21 CFR Part 101 requires, and the nutrients most likely to fail label verification for food and supplement brands.

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Food Safety

Mycotoxin Testing for Grains and Food Ingredients: What Aflatoxin and Ochratoxin Limits Mean for US Brands

Aflatoxins and ochratoxin A threaten grains, spices, and botanicals. Learn how food safety laboratories test for mycotoxins and what FDA compliance requires.

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Food Safety

Acrylamide Testing in Baked Goods and Snacks: What Food Safety Laboratories Find — and What FDA's Guidance Actually Requires

Acrylamide forms in chips, crackers, and coffee during high-heat processing. Here's what food safety laboratories find and what FDA and Prop 65 require.

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Dietary Supplements

FDA Supplement Recall Patterns in 2025: The Testing Failures Behind the Headlines

FDA supplement recalls cluster around three predictable failure points. Here's what the data shows—and what your testing protocol needs to address before you end up on the list.

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Cosmetic Testing

Benzene in Aerosol Cosmetics: What the Recall Wave Reveals About Your Testing Protocol

Over 100 aerosol cosmetic SKUs recalled for benzene since 2021. Learn how contamination enters the supply chain and what your testing protocol must include.

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Cosmetic Testing

Heavy Metals in Lip Products: What FDA's Guidance Says — and What Cosmetic Testing Labs Actually Find

FDA tested 400 lip products and found lead in every single one. Here's what the guidance thresholds mean for California cosmetic brands — and what a lab panel should cover.

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Chemical Testing

Cannabis Potency Testing Inconsistencies: Why State Lab Results Vary 20%+ — and What Your Brand Can Do About It

Cannabis potency results can vary 20%+ between state-licensed labs. Here's why the gap exists, what it costs your brand, and how ISO 17025 creates accountability.

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Dietary Supplements

Saffron Supplement Testing: Why Safranal Claims Are Harder to Verify Than Brands Think

Saffron is among the world's most adulterated botanicals. Learn what supplement brands must test for, which methods actually work, and why supplier COAs routinely miss the mark.

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Dietary Supplements

Kratom Testing: What Labs Find, What States Require, and What a Single COA Can't Cover

Kratom lab testing: heavy metals, Salmonella risk, and alkaloid profiling explained for brands selling across KCPA states, California, and Amazon.

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Dietary Supplements

NSF, USP Verified, and Informed Sport: What Third-Party Supplement Certifications Actually Test — And What They Don't

Think your NSF or USP Verified seal covers everything? We break down what each certification program tests — and the testing gaps brands routinely miss.

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Microbiology

Protein Powder Microbial Testing: What Whey and Plant-Based Brands Need From a Food Safety Testing Laboratory

Protein powders carry higher microbial risk than most supplements. Learn what USP <61>, <62>, 21 CFR Part 111, and an ISO 17025 food safety testing laboratory demand.

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Cosmetic Testing

PFAS Testing for Cosmetics: Why the Method Your Lab Uses Determines What It Actually Finds

LC-MS/MS vs. total fluorine screening vs. the TOP assay — a technical breakdown of PFAS testing options for cosmetic brands navigating California AB 2771 and growing state bans.

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Dietary Supplements

Beet Root Supplement Testing: Why Nitrate Content Claims Are Harder to Verify Than Most Brands Realize

Beet root supplements depend on inorganic nitrate for their efficacy — but most brands aren't accurately testing for it. Here's what proper nitrate and nitrite analysis demands.

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Dietary Supplements

Functional Mushroom Supplement Testing: What Lion's Mane, Reishi, and Cordyceps Lab Results Actually Show

Lab testing of functional mushroom supplements reveals frequent identity and potency failures. Here's what DNA barcoding and beta-glucan analysis actually show.

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Dietary Supplements

Dissolution Testing for Supplement Tablets and Capsules: The Bioavailability Test Most Brands Never Order

Potency tests confirm what's on the label. Dissolution testing reveals what the body actually gets. Here's what USP <711> and <2040> show about supplement tablets.

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