Recent in Methods & Processes (page 1 of 9)

Validating the Effectiveness of Rubbing on Percutaneous Penetration

The effect of rubbing on percutaneous penetration has long been questioned. Existing data regarding rubbing effects is sparse, and what is available is controversial at best. While some evidence suggests that rubbing increases absorption, others note the opposite. Further understanding of the rubbing effect on percutaneous penetration may offer a more complete picture in relation to the application of drugs, cosmetics and skin care.

Study Suggests Link Between Citrus Consumption and Melanoma Risk

A recent study suggests a possible link between the consumption of citrus and an increased risk of malignant melanoma.

Destruction and Creation Harmonize at C&T Summit

“Analysis, synthesis, creation and destruction” was the secret recipe behind keynote speaker Jeffrey Baxter’s guide to unconventional thinking for problem-solving during the Cosmetics & Toiletries Summit.

Sun Protection and Early Detection

According to the 2014 American Society for Dermatologic Surgery (ASDS) Survey on Dermatologic Procedures, ASDS members performed an estimated 3.08 million skin cancer treatments last year.

Child Subjects Proposed for AD Treatment Trials

Treatment options for atopic dermatitis (AD) are expanding and dermatologists anticipate new therapies to help both children and adults.

Making it Personal: The Focus of Multifactorial Skin Care

Our skin is often the first thing others notice about us, so its impact on our self-image and esteem is considerable. Accounting for all of the skin’s traits and the causes of them requires a multifactor approach to keep it clear, smooth and supple.

Natural vs. Synthetic Antimicrobials and HDAC as an Indicator of Microflora Health

This article reviews the role of skin microflora in protecting skin, and assesses how the histone deacetylase (HDAC) enzyme is implicated. From this, HDAC expression is used as an indicator to compare the effects of traditional biocides and preservatives with natural antimicrobials on skin’s microbiome. Results suggest the latter effectively preserve products while maintaining a healthy microbiome.

Sustainable Ingredient Science: Amazonian Aguaje and Pequi Palm Oils

The food and nutrition supply chain is often the first entry for “super plants” from the Amazon to the market, but other applications are increasing, especially in personal care and cosmetics. The present article profiles two Amazonian palm oils, aguaje and pequi, in terms of their sustainability, chemistry and application.

Modeling the Dynamics of Hair Movement

The dynamics of hair movement are of particular interest to product developers because they are important to consumers. In relation, computer animation and 3D modeling expert Norman Badler, PhD, of the University of Pennsylvania, will discuss ways to model the dynamics of hair movement during the Cosmetics & Toiletries Summit.

Formulators Can Avoid Quality Disasters

There are a number of things that cosmetic chemists can do to avoid problems in production and ultimately in the marketplace. In the laboratory, almost anything is possible, but production life is very different.

IFSCC 2014 Explores Social, Psychological and Sensorial Aspects of Beauty

As one might expect from an event centered around beauty and staged in Paris, the 28th Congress of the International Societies of Cosmetic Chemists (IFSCC) was nothing less than fabulous. However, the glamour and fanfare was deeply rooted in science.

Practical Foam Science

Foam science can be confusing, so the temptation is to formulate by trial and error. However, understanding the science behind key aspects of foam—i.e., elasticity, DLVO Theory stability, Ostwald ripening, draining and antifoams—and applying this will fast-track foam development. These concepts are detailed here.