A Practical Guide to Microbial Risk Assessment for Low-Risk Cosmetic Products Overview ISO 29621 cosmetics guidance provides a framework for microbiological risk assessment of products with low likelihood of contamination. Unlike traditional test methods such as USP <61>/<62> or ISO 11930,
Short Description Substances of Very High Concern (SVHC) are chemicals identified under EU REACH regulation due to their potential risks to human health and the environment. Understanding SVHC requirements is critical for product compliance in the European market. What Does SVHC
PFAS testing cost varies depending on the type of analysis required, the number of compounds evaluated, and the level of detail needed for compliance or risk assessment. If you are evaluating PFAS testing for your product, understanding the cost structure can
Short Answer You may need PFAS testing if your product contains fluorinated materials, is designed for water/oil resistance, or is sold in regulated markets or through major retailers. With increasing regulatory pressure and retailer requirements, PFAS testing is quickly becoming a
Short Answer A CPSR (Cosmetic Product Safety Report) is a mandatory safety assessment required for cosmetic products sold in the European Union (EU) and United Kingdom (UK). It ensures that a product is safe for human use under normal or reasonably
The ISO 11930 challenge test evaluates whether preservatives in cosmetic and personal care products effectively control microbial contamination. Manufacturers perform this test during product development to ensure formulations remain safe and stable throughout their shelf life. One of the most widely
pH drift during stability testing refers to the change in pH that occurs in a formulation over time under controlled storage conditions. Monitoring pH throughout stability studies is essential because shifts in acidity or alkalinity can indicate chemical degradation, preservative instability,
Summary PFAS testing methods include Total Fluorine (TF), Total Organic Fluorine (TOF), and targeted PFAS analysis. Each method serves a different purpose, from initial screening to detailed compound identification for compliance. Understanding the difference is critical when deciding how to test
Stability testing for skincare products evaluates how formulations perform over time under different environmental conditions. These studies help determine whether a product maintains its appearance, texture, chemical composition, and safety throughout its intended shelf life. Because skincare formulations often contain sensitive
Flash point testing determines the temperature at which a liquid produces vapors that ignite when exposed to an ignition source. Because accurate measurements depend on proper sample handling, laboratories require specific sample preparation and volume requirements before performing the test. Understanding
Flash point and fire point are two important measurements used to evaluate the flammability of liquids. Although these terms are often confused, they describe different ignition behaviors. Understanding the difference helps manufacturers, safety professionals, and regulators determine how a material should
The ASTM D93 flash point test determines the temperature at which a liquid produces vapors that ignite under controlled conditions. Laboratories perform this test using the Pensky-Martens closed cup apparatus, which contains vapors during heating. Manufacturers commonly request this method when
Flash point is the lowest temperature at which a liquid produces enough vapor to ignite when exposed to an ignition source such as a flame or spark. Flash point is one of the most important measurements used to evaluate the flammability
The Problem With Traditional Stability Testing Most stability testing programs are designed to answer a single question: Did the product fail? While pass/fail testing is important, it often identifies problems after valuable time and money have already been spent. By the
Heavy Metals in Cosmetics Limits Heavy metals in cosmetics limits are regulated or guided by multiple jurisdictions, including the United States and the European Union. While some metals may occur as trace impurities, excessive levels can present safety and regulatory concerns.
Closed Cup vs Open Cup Flash Point: What’s the Difference? Understanding closed cup vs open cup flash point testing is essential when classifying flammable materials, preparing SDS documents, and ensuring transport compliance. Although both methods measure flash point, they simulate very
ΔE in stability testing refers to the measurable color difference between a product’s baseline appearance (T0) and subsequent timepoints during a stability study. Rather than relying only on visual observation, ΔE quantifies how much a product’s color has changed over time.
Camera Based Stability Testing at Pentyl Labs Camera based stability testing enhances traditional visual stability studies by turning appearance changes into measurable, trendable data. Instead of relying only on subjective observation, Pentyl Labs performs controlled digital imaging to quantify color shift,
Cosmetic Claims Testing Cosmetic claims testing is essential for beauty, personal care, and oral care brands that want to make truthful, defensible product claims. At Pentyl Labs, we provide cosmetic claims testing and claim substantiation services that help brands support statements
What Is Product Authenticity Testing? Product authenticity testing is the evaluation of a product to determine whether it is genuine, unadulterated, and consistent with its claimed identity, formulation, or origin. It is commonly used to detect counterfeits, investigate suspected adulteration, and
