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Type: Article

Section: Research > Methods/Tools

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.

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Comparatively Speaking: A Commentary on 'Cleaning'

The recent "Comparatively Speaking" column on cleaning, sanitizing, disinfecting and sterilizing was well-received and generated a good amount of interest. One appropriate addition, described here, suggests that "cleaning" is more complicated than removing organic matter.

Comparatively Speaking: Evaporation vs. Boiling

Industry expert Tony O'Lenick explains the difference between two types of vaporization: evaporation and boiling, for the benefit of novice formulators.

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Comparatively Speaking: HLB vs PIT

HLB and PIT are both important concepts for making emulsions. They provide different information, however, so both should be used to optimize emulsions. Tony O'Lenick, et al., explain.

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Comparatively Speaking: Dimethicone vs. Methicone

Cyclic compounds have taken some heat in recent years, naturally giving rise to the search for replacements. As such, Tony O'Lenick gives dimethicone and methicone a second and closer look in his latest Comparatively Speaking installment.

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: Epilation vs. Depilation

Both epilation and depilation relate to the removal of unwanted hair. Whereas depilatories remove hair at the surface, epilation is the removal of the entire hair, from beneath the surface.

Comparatively Speaking—Maceration vs. Decoction

Herein, industry expert Tony O'Lenick explains the difference between maceration and decoction, and how decoction can extract large quantities of inert materials that may contribute to microbiological spoilage.

Comparatively Speaking—Creativity vs. Innovation

In this philosophical discussion, Tony O'Lenick considers the differences between creativity and innovation, and how they can lead to success in the consumer market.

Comparatively Speaking: GLC vs. GPC

Tony O'Lenick explains the difference between two types of chromatography: gas liquid chromatography (GLC) and gel permeation chromatography (GPC), both used to separate compounds in mixtures.

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Comparatively Speaking: Soluble vs. Insoluble

What’s the difference between something that is soluble vs. insoluble? Tony O’Lenick explores this notion. At first, he writes, this may seem quite simple but a deeper investigation provides formulation insight.

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Scale-up Success Requires Compromise

The in-cosmetics Global technical session on scale-up success was, in and of itself, a scale-up success as it left standing room only for a crowd of attendees eager to learn tips, tricks and best practices.

Comparatively Speaking: Density vs. Specific Gravity

This edition of "Comparatively Speaking" by industry expert Tony O'Lenick compares a product's density with its specific gravity, which are important measurements for formulators to understand especially when considering product specifications.

Comparatively Speaking: cGMP vs. ISO

Tony O'Lenick draws on the expertise of Joe Albanese of 3V Inc. to discuss the differences between cGMP compliance and ISO certification.

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Comparatively Speaking: Natural Oil Grades

The use of natural oils (triglycerides) is becoming more important for sustainable and biodegradable formulas but oils are processed in many grades. In this article, Tony O'Lenick explores their differences.

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Comparatively Speaking: Formulating by Numbers

What's the difference between a good and a great article? According to Tony O'Lenick, the latter gives readers the bottom line in a no-nonsense format. He illustrates with this "formulating by numbers" article, written around tables and geared toward chemists.

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Comparatively Speaking: Silicon Dioxide, Silicon and Silicone

This column is intended to provide an understanding of the relationships between these raw materials and the silicones found in personal care.

Comparatively Speaking: Patent vs. Trade Secret

In this "Comparatively Speaking," Tony O'Lenick explains the difference between patents and trade secrets, both of which cosmetic chemists will encounter during their careers. This information will assist in determining whether a technology should be patented or maintained as a trade secret.

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