Recent in Chemistry (page 7 of 9)

Specialty Pigments: Properties and Effects

Specialty pigments bring unique effects to personal care products, thus they are an important class of color additives for the decorative cosmetic industry. Presented here is a review of their properties and benefits, including mechanisms of refraction and reflection, as well as regulatory considerations.

Ingredient Profile—Mica

Mica is an inorganic material found in a wide variety of cosmetic and personal care products. Its use has been reported in more than 7,100 products, making it one of the most important mineral ingredients used in cosmetics.

Water Content and Moisturization

In the midst of his examination of the adsorption properties of hair, Trefor Evans addresses water content and its manipulation with regard to moisturization in the following excerpt from AlluredbooksPractical Modern Hair Science.

New Findings in Fullerenes

New findings regarding the formation of fullerenes, aka "buckyballs," were recently published in the journal Nature Communications, suggesting that smaller cages grow into larger ones.

New Anti-dandruff Target Identified

In a recent study, researchers found that an enzyme from the dandruff-causing pathogen Malassezia globosa provides a potential new anti-dandruff target.

Comparatively Speaking: Solubility vs. Extraction

In this installment of "Comparatively Speaking," industry expert Tony O'Lenick describes the difference between solubility and extraction, and how various extraction techniques can be used to isolate desired cosmetic actives.

Comparatively Speaking: Solubility vs. Partition Coefficient

Here, industry expert Tony O'Lenick explains the difference between solubility and partition coefficient, as the understanding can lead to a better delivery of a formulation's materials.

Nanotechnology in Cosmetics: A Review

As the commercial applications of nanotechnology have increased in the past decade, a number of nanoparticles are now being used in cosmetic products with optimized sensory attributes and consumer-perceivable benefits. This article reviews various forms of nanoparticles used in the cosmetic industry, discussing their properties, interactions with the skin and potential health effects.

Silicone Safety and the Cosmetic Industry

The use of silicones in personal care products continues to expand because of the unique performance attributes they provide and their well-established record of safety. As a result, progressively larger volumes of silicones are being released to the environment, and interest in their life cycle has increased. The present article summarizes relevant fundamental chemical and physical properties of silicones and how these relate to material performance, safety and environmental fate.

Comparatively Speaking Compound vs. Composition

Here, industry expert Tony O'Lenick explains the difference between a compound and a composition, as understanding their differences can lead to better formulation.

Improving the Solubility of Benzoyl Peroxide: A Review

In this review, the authors examine studies relating to the solubility of BPO. The clinical trials discussed show that compared with suspended BPO, BPO solubilized by dimethyl isosorbide reduced P. acnes and decreased both inflammatory lesions/irritation and the emergence of antibiotic-resistant P. acnes strains. This reveals the importance of solubilizing BPO for improved efficacy and safety.

Comparatively Speaking: Natural vs. Oxo vs. Ziegler Alcohols

Industry expert Tony O'Lenick explains the differences between natural, oxo and ziegler alcohols to help the formulator better understand the source of their raw materials.

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