Chemistry

Recent in Chemistry (page 12 of 19)

Polar vs. Nonpolar Oils

Tony O’Lenick asks industry expert Valerio Vergani of AKOTT Italia to describe the difference between a polar and a nonpolar oil...

From Collagen Production to 190-nm Emulsions: Literature Findings

The following column discusses the latest technological advancements in the fields of hair care, skin care, oral care, sunscreen, color cosmetics and more.

Personal Care Technologies Appearing in Recent Scientific and Patent Literature

The following column discusses the latest technological advancements in the fields of hair care, skin care, oral care, sunscreen, color cosmetics and more.

Betaine vs. Amphoteric

Industry expert Tony O'Lenick explains the differences in structure and function between a betaine and an amphoteric.

Polymer vs. Monomer

What is the difference between a polymer and a monomer? According to Tony O'Lenick, a polymer is a chemical composed of many repeat units. These repeat units can be composed of one monomer, two or more monomers or blocks of smaller polymers.

Technically Speaking: From Keratin Regulation Through Wet Wipes Emulsion Literature Findings

The following column discusses the latest technological advancements in the fields of hair care, skin care, oral care, sunscreen, color cosmetics and more.

Patent vs. Trademark vs. Copyright

Industry expert Tony O'Lenick distinguishes between patents, which protect inventions; trademarks--symbols to indicate the source of goods; and copyrights that protect original works of authorship.

Molecular Weight of Compound vs. Polymer

Compounds generally have one molecular weight but polymers are different; their molecular weight usually is a bell-shaped curve of a distribution of molecular weights.

Formulating Focus: The Influence of Emollients on Skin Penetration

This column will discuss ways in which ingredients can positively affect the partition coefficient of the active between the formula and the skin. By carefully selecting the emollients used in a formulation, formulators can increase the delivery and clinical efficacy of a formulation without increasing the level of the active ingredient.

Technically Speaking: From Enzymes to Fragrance Ingredient Testing: A Literature Overview

The following column discusses the latest technological advancements in the fields of hair care, skin care, oral care, sunscreen, color cosmetics and more.

Degree of Polymerization vs. Degree of Crosslinking

Industry expert Tony O'Lenick explains that both degree of polymerization and degree of crosslinking are terms that apply to polymers but they define very different attributes.

Drug-likeness vs. Lipinski’s Rule of Five

Tony O'Lenick discusses the difference between drug-likeness and Lipinski's Rule of Five.

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