Certified Laboratories Blog
Insights for the food & beverage, cosmetics, OTC, supplements, and other industries.
How to Test for Lead in Spices: A Guide to Detecting Heavy Metals
Understand how to test for lead in spices, the risks of heavy metals in spices, ASTA’s stance, and the role of testing in product safety.
Food Forensics & Filth Testing: FDA Defect Action Levels Guide
Explore FDA Defect Action Levels for food safety. Ideal for QC teams, this guide covers DALs, common contaminants, and how to test your products.
21 CFR 211: Understanding GMPs for OTC Drug Products
Learn the essential 21 CFR 211 lab testing requirements for OTC drug products to ensure safety, quality, and FDA compliance.
Unveiling the Science of Sensing: Organoleptic and Sensory Analysis in Food Quality Control
Explore organoleptic testing’s role in food quality control and how it complements sensory analysis for product excellence.
Mastering Supplier Qualification for Dietary Supplements: A Step-by-Step Guide
Ensure quality with a robust Supplier Qualification Program. Navigate supplier risks and meet industry standards with expert guidance.
How to Conduct an Allergen Gap Assessment
We explain the 7 steps of performing an Allergen Gap Assessment, break down the regulations, and provide an example Allergen Gap Assessment checklist.
![How to Perform an Out of Specification Investigation for OTC Drug Products and Dietary Supplements [Step-by-Step]](https://certified-laboratories.com/wp-content/uploads/supplements-under-microscope-400x250.jpg)
How to Perform an Out of Specification Investigation for OTC Drug Products and Dietary Supplements [Step-by-Step]
Discover the essentials of an OOS investigation in OTC and supplement manufacturing, ensuring quality and compliance.
In-Package Cosmetic Stability Testing: Your Top 5 Questions Answered
Answers to the top 5 questions we get about in-package stability testing for OTC, cosmetic, personal care, supplements, and other products.
Own Label & Private Label Distributors: What are Your cGMP Responsibilities?
Discover the responsibilities of your Quality Unit in meeting cGMP requirements for dietary supplements and OTC drugs.
FAQs About Amazon’s New U.S. Dietary Supplements Policy
What has changed? What is a “TIC”? What lab can I use for my supplements testing? We answer them all here.
How to Develop Quality Unit Roles & Responsibilities SOP for Supplements
Learn how to develop a Quality Unit Roles and Responsibilities SOP compliant with 21 CFR 111 for dietary supplements to meet regulatory requirements.
What is Preservative Efficacy Testing (PET) for Cosmetics?
Preservative efficacy testing (PET) evaluates the effectiveness of a cosmetic or OTC product’s ability to inhibit microbial growth. Here’s how it’s done.
Cosmetic & Personal Care Claims Substantiation: Advice from an Expert
Learn how to substantiate cosmetic and personal care product claims to comply with U.S. regulations, avoid fines, and build consumer trust.
Understanding Hyaluronic Acid Testing: A Journey of Precision and Patience
Discover the process of hyaluronic acid testing in cosmetic and OTC products, verifying purity and efficacy through precision and expertise.
Step-by-Step Guide to USP 71 Sterility Testing Methods
Discover USP 71 sterility testing methods, including Membrane Filtration and Direct Inoculation, to verify your products are free from harmful microorganisms.
Heavy Metals in Cinnamon and the Importance of Testing
Perform a risk assessment of your raw materials and integrate heavy metals lab testing into your processes to maximize safety and quality.
Understanding Colloidal Oat Lab Testing
Discover the steps when performing lab testing for colloidal oatmeal for cosmetic and skincare products.
“Vitamin Tuna”: Lab Testing to Verify the Integrity of Your Supply Chain
Learn about “vitamin tuna” and undeclared coloring additives, such as beet juice and ascorbic acid. Understand testing requirements for compliance.
Understanding Protein Quality: The Role of PDCAAS
Learn how PDCAAS testing verifies protein quality, supports accurate label claims, and helps manufacturers meet regulatory requirements.
Cosmetic Safety Substantiation: Your Guide for Compliance
Reviewed and Approved by Paula Brock, PhD, MSCI, Senior Regulatory & Scientific Consultant, EAS Consulting Group, a Certified Group company. 1-Minute Summary MoCRA requires cosmetic manufacturers to substantiate product safety before market...