Jul 9, 2026 | COS Edu Guide, Heavy Metals
Commonly asked questions about heavy metals testing for cosmetics, OTC drugs, and personal care products. What is heavy metals analytical testing for cosmetics?Laboratory analysis used to measure trace amounts of metals such as lead, arsenic, cadmium, and mercury in a...
Jul 9, 2026 | COS Edu Guide, Heavy Metals
The following are common terms and their definitions related to heavy metals testing of cosmetics and OTC drug products. Analytical Testing: Laboratory testing used to measure specific substances in a cosmetic product, such as lead, arsenic, mercury, cadmium, or other...
Mar 3, 2026 | COS Edu Guide, Microbiology
This guide covers the critical steps of microbiology testing, common test methods, and the importance of microbial suitability. Primary Stages When Cosmetic Microbiology Testing Is Performed Microbiology testing is performed at multiple stages to help ensure quality...
Mar 3, 2026 | COS Edu Guide, Microbiology
Microbiology testing confirms that products remain safe and free from harmful microorganisms. This guide explains how testing is performed in the laboratory and why proper methods are essential for reliable results. What does microbiology testing evaluate?Overview of...
Mar 3, 2026 | COS Edu Guide, Microbiology
Commonly asked questions about microbiology testing for cosmetics, OTC drugs, and personal care products. Which products need microbiology testing?Most water-containing cosmetics, personal care products, and topical OTC drugs require microbiology testing to ensure...
Mar 3, 2026 | COS Edu Guide, Microbiology
The following are common terms and their definitions related to microbiological testing of cosmetics and OTC drug products. Aerobic Plate Count (APC/TAMC): A test that measures the total number of aerobic bacteria in a product. It is used to evaluate overall microbial...
