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Section: Research > Literature/Data

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: Chemical Compound vs. Chemical Complex Composition

Chemical compounds are easier to analyze, quantitate and evaluate in a formulation than chemical complex compositions. Tony O'Lenick explains why in this installment of "Comparatively Speaking."

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Comparatively Speaking: Compounds vs. Compositions

The difference between a compound and a composition has a dramatic effect upon the ability to formulate. The vast majority of raw materials used in formulations are not compounds, but rather complex mixtures called compositions.

Comparatively Speaking: Composition vs. Composition of Matter

Here, industry expert Tony O'Lenick explains the difference between a composition and composition of matter, as understanding their differences can aid the formulator when dealing with patent law.

Comparatively Speaking: Molecular Notation of Compounds vs. Compositions

In this look at representative chemical structures, Tony O'Lenick compares the structural notation of molecules present in sodium chloride with those present in sodium polymethacrylate.

Comparatively Speaking: Number of Molecules in Compounds vs. Compositions

In this basic look at representative chemical structures, Tony O'Lenick compares the number of molecules in sodium chloride with sodium polymethacrylate. Future features will discuss differences in their distribution as well as the accuracy of the structures themselves.

Comparatively Speaking: Commodity vs. Specialty Chemical

Industry expert Tony O'Lenick asks: What is the difference between a commodity and a specialty chemical?

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Healthy Aging vs. Anti-aging: Indole Informs Insights

Lifespan does not equal healthspan, and research from Emory University shows the two can exist independently. Indeed, a class of chemicals known as indoles improved the health of organisms during aging with minimal impact on lifespan. Could these insights impact cosmetics and skin care?

Comparatively Speaking: Amphilic vs. Non-amphilic Compounds

The term amphilic refers to a compound that possesses at least two groups that, if present in pure form, are insoluble in one another. The groups that are most commonly encountered are oil and water.

Comparatively Speaking: Process Claim vs. Compound Claim vs. Product-by-Process Claim

Industry expert Tony O'Lenick explains the difference between a process claim, a compound claim and a product-by-process claim in reference to patents.

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Comparatively Speaking: Complexation vs. Coacervation in 2-in-1 Shampoos

Hair care traditionally involves cleansing with anionic or amphoteric surfactants, rinsing, then using a conditioner with cationic surfactant and cetyl and stearyl alcohol. Combining these as 2-in-1 products is not easy but complexation and coacervation approaches can achieve such.

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Patent Pick: Indolyl for Smarter Skin Whitening

Skin whitening still ranks among the top demands from cosmetic consumers, especially those in Asia. As such, Unilever researchers have been seeking safer, more efficient means to manage melanin. Their answer? Quite possibly, indolyl. A new patent application explains.

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[podcast] Author Commentary: Travis Whitfill on 'Commensal Cosmetics'

Imagine the potential for "commensal cosmetics..." What might they do? What obstacles could they face? In this podcast, April Cosmetics & Toiletries author Travis Whitfill explores these thoughts and describes his motivation for writing the article.

Compass: New Tricks

In the spirit of reformulating, this issue features five suggestions for improvement in major categories of personal care—from hair dyeing and strengthening, to delivering actives, formula stability and preservation.

Hard vs. Soft Complex

Industry expert Tony O’Lenick discusses surfactants, describing the difference between hard and soft complexes.

Corneocare and Comfort Science

At the Skin Forum 2013 event in London, the seven pillars of “corneocare,” were introduced, which targeted: the epidermal tissue at the molecular, cellular and structural level; epidermal function; tactile experience; appearance and sensation. This is one of the first concepts in personal care to close the gap between consumer perception and a scientific approach.

Comparatively Speaking: Dimethicone vs. Methicone

Dimethicone refers to a silicone compound that has “D” units, meaning only silicon atoms with two methyl groups attached. A methicone completely lacks the “D” unit.

Comparatively Speaking: Sterol vs. Stearyl

Many terms used in personal care formulating sound and look alike yet have vastly different meanings. This primer for novice chemists examines the terms sterol and stearyl.

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