Reviewed and Approved by Matt Traynor, PhD, Vice President, Innovation and Validation, Certified Laboratories 1-Minute Summary Vitamin C is a popular but unstable compound in skincare, requiring accurate content verification to support label claims. In the...
Reviewed and Approved by Matt Traynor, PhD, Vice President, Innovation and Validation, Certified Laboratories 1-Minute Summary Measurement Uncertainty (MoU) explains why lab results are reported with a ± range — it’s a built-in measure of scientific...
1-Minute Summary New York state enforces a 1,4-dioxane limit of 10 ppm in cosmetics and 1 ppm in personal care products. USP <467> and EPA Method 8270 aren’t sensitive enough without modification. Certified Laboratories offers a validated GC-MS...
Reviewed and Approved by Matt Traynor, PhD, Innovation and Validation Director, Certified Laboratories Several cosmetic and over-the-counter (OTC) drug products are formulated with petrolatum due to its emollient, protective, and water-resistant properties....
