Pentyl Labs provides ASTM D1177 freeze point testing for aqueous engine coolants. We also offer specialized freeze point evaluations for windshield washer fluids, cleaners, cosmetics, and other aqueous liquid products. ASTM D1177 Freeze Point Testing Pentyl Labs provides ASTM D1177 testing
Dental and oral care products require careful evaluation to support product quality, stability, microbiological integrity, safety, and regulatory compliance. Pentyl Labs supports a range of analytical, microbiological, and stability testing services applicable to oral care formulations including dental gels, toothpastes, mouthwashes,
DEA testing GC-FID is one of the most common analytical approaches used to detect and quantify diethanolamine (DEA) in cosmetics and personal care products. GC-FID (Gas Chromatography with Flame Ionization Detection) allows laboratories to evaluate DEA content in shampoos, cleansers, soaps,
Ingredients like DEA, TEA, and MEA are commonly used in cosmetic and personal care formulations. However, they are often misunderstood—and increasingly scrutinized. So what’s the difference between them, and why does it matter? What Are DEA, TEA, and MEA? DEA, TEA,
If you manufacture or sell cosmetics, DEA testing is becoming a key part of product compliance. Retailers, regulators, and consumers are increasingly focused on the presence of Diethanolamine (DEA) and related compounds. As a result, brands are expected to verify that
If you’re selling cosmetics, personal care, or cleaning products, DEA testing is quickly becoming a requirement—not a nice-to-have. Retailers and online platforms are tightening chemical safety standards. As a result, brands must prove that their products are free from restricted substances
What Is Cocamide DEA and Is It Banned in Cosmetics? Cocamide DEA is a common ingredient in shampoos, body washes, and liquid soaps. However, in recent years, it has faced increasing scrutiny from regulators, retailers, and consumers. So, what is Cocamide
How brands are testing smarter and releasing faster The problem with traditional quality control Many cosmetic brands still rely on traditional cosmetic quality control testing approaches where every batch is tested the same way, regardless of risk or variability. Every batch
What Is a Safe Harbor Assessment? A Safe Harbor Assessment is a scientific and regulatory evaluation used to determine whether a product complies with California Proposition 65 without requiring a warning label. This assessment compares the level of specific chemicals in
Requirements Explained for Cosmetic Products The National Eczema Association (NEA) Seal of Acceptance is one of the most recognized third-party endorsements for products intended for sensitive and eczema-prone skin. For brands looking to build trust and differentiate in the market, achieving
Do You Need 100 Participants As more brands position their products for sensitive or eczema-prone skin, expectations around safety testing are increasing. While standard Human Repeat Insult Patch Test (HRIPT) studies are widely used to support claims like “dermatologist tested,” some
HRIPT and Cosmetic Claims Explained The claim “dermatologist tested” appears on a wide range of cosmetic products, from skincare to personal care items. While it sounds authoritative, the meaning is often misunderstood. This article explains what “dermatologist tested” actually means, how
Flash point testing for cosmetics is a critical evaluation used to determine the lowest temperature at which a product emits vapors that can ignite. For products containing flammable ingredients—especially alcohol-based formulations—flash point data is essential for regulatory compliance, safe handling, storage,
What Is 1,4-Dioxane? 1,4-Dioxane is a trace contaminant that forms during the manufacturing of certain ingredients. In particular, it develops during the ethoxylation process used to create surfactants found in cosmetics, personal care, and cleaning products. Although manufacturers do not intentionally
Introduction Selling cosmetics on Amazon requires more than a strong product and branding — it requires proof that your product is safe, stable, and compliant with U.S. regulations. Amazon increasingly requests documentation from sellers to verify product safety and labeling. If
Preservatives are essential for maintaining the safety and stability of cosmetic products. However, simply adding a preservative to a formulation is not enough—its concentration must be verified through analytical testing. At Pentyl Labs, we provide quantitative preservative assay testing to confirm
Preservatives are essential in cosmetic and personal care products to prevent the growth of bacteria, yeast, and mold. Without an effective preservative system, products can become unsafe or unstable over time. While many preservative options exist, most formulations rely on a
What Is Diethanolamine (DEA)? Diethanolamine (DEA) is an organic compound used in cosmetics and personal care products as a pH adjuster, emulsifier, and foaming agent. It may be intentionally added or present as an impurity in surfactant systems. DEA is commonly
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
