1,4-Dioxane Analysis in Cosmetics, Personal Care, and OTC Products: How Our GC-MS Method Works
Why 1,4-Dioxane is Difficult to Measure in Cosmetic Matrices 1,4-dioxane is a trace by-product of ethoxylation, a common chemical process used to create surfactants and emulsifiers found in many cosmetics, personal care, and...
Certified Laboratories Approved as Amazon TIC for Supplements
Expansion reinforces leadership in regulated product testing. BURBANK, Calif., Jan. 20, 2026 – Certified Laboratories, a Certified Group company, is now officially recognized as an Amazon-approved Testing, Inspection, and Certification (TIC) organization for dietary...
Want Accurate Results, Faster? Send Your COA with Your Sample
Reviewed and Approved by Matt Traynor, PhD, Vice President, Innovation and Validation, Certified Laboratories 1-Minute Summary COAs provide key technical details that are often absent from the sample submission form. They help us choose the most...