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Dec 02, 2011 | 02:17 PM CST
Ethyl Lauroyl Arginate HCl for Natural Preservation
By: Maria Minguet, PhD; Rut Barcelona, MD; Eduard …
Ethyl lauroyl arginate HCl (LAE), derived from natural lauric acid and L-arginine, is shown here to provide broad-spectrum activity against microorganisms including Malassezia furfur and Propionibacterium acnes. In vitro tests corroborated by in vivo evaluations suggest its efficacy in anti-dandruff and dermo-purifying applications.
Dec 02, 2011 | 02:14 PM CST
Improving Deposition From High-water Formulas Using Amphiphilic Polymers
By: Mussarat Noor; Richard Goddard, PhD; and Arnol…
Effective high-water skin care systems may play an important role in addressing emerging market consumer needs. The present study considers the challenges of such systems, particularly regarding the deposition of ingredients across water solubilities, and proposes an amphiphilic cationic polymer as one possible solution.
Dec 02, 2011 | 02:05 PM CST
Formula Anatomy Deciphered—Shampoos
By: Eric S. Abrutyn, TPC2 Advisors Ltd.
The primary purpose of a shampoo is to clean the hair and scalp; all other attributes such as styling, conditioning split ends, adding shine and improving combability are accomplished by grooming tasks and used for claim purposes to differentiate a product from the competition.
Dec 02, 2011 | 02:00 PM CST
Ingredient Profile—Sodium Lauroamphoacetate
By: Michael J. Fevola, PhD, Johnson & Johnson
The present column features one of the oldest and most well-known members of the amphoteric family: sodium lauroamphoacetate (SLAA).
Nov 04, 2011 | 01:17 PM CDT
Pollution and Aging: Antioxidants for Skin
By: Jean-Francois Nicolay and Christophe Paillet, …
Cell membrane-derived lipidic hydroperoxides, introduced into the skin by environmental stresses, seem to be key players in oxidative stress-mediated extrinsic aging. Imidazole-containing peptidomimetics can protect against their toxicity through a variety of mechanisms.
Oct 28, 2011 | 10:23 AM CDT
Enhancing Hairstyling with Micro- and Nano-phase Technologies
By: Robert Lochhead, Kelly McLeod and Willis Byrd,…
Nanostructured materials are being introduced to personal care technologies to offer better resistance to moisture, to enhance strength and to confer stimuli responsive behavior. Some of the scientific advances that build upon new knowledge in this emerging field are highlighted in this article.
Oct 28, 2011 | 10:18 AM CDT
Formula Anatomy Deciphered—Antiperspirants
By: Eric S. Abrutyn, TPC2 Advisors Ltd.
The formulation matrix delivery system is the key to effectiveness and acceptable consumer antiperspirant systems. The most common delivery systems are roll-ons (either aqueous or cyclosiloxane suspensions), aerosol (hydrocarbon propellant suspensions), extrudable clear gels (water-in-cyclosiloxane emulsions), extrudable opaque soft solids (anhydrous cyclosiloxane suspension pastes) or solid sticks (anhydrous cyclomethicone suspension solids).
Oct 28, 2011 | 10:14 AM CDT
Ingredient Profile—Benzoic Acid/Sodium Benzoate
By: Michael J. Fevola, PhD, Johnson & Johnson
Benzoic acid (BA) is a leading choice due to its long and successful history of use preserving foods, drugs and cosmetics. Affirmed as GRAS (Generally Recognized As Safe) by the US Food & Drug Administration (FDA), BA and its sodium salt, sodium benzoate (NaB), are perhaps the most globally acceptable preservatives that have managed to avoid the controversy associated with many of the industry’s tried-and-true preservatives.
Oct 05, 2011 | 12:05 PM CDT
Silicone Emulsifiers and Formulation Techniques for Stable, Aesthetic Products
By: Isabelle Van Reeth, Xinyan R. Bao, Yasuhiro Ka…
Mastering formulating techniques with water-in-silicone emulsifiers can help cosmetic chemists create stable emulsions that combine distinctive aesthetics with improved performance. Here, the authors describe how altering parameters including the water to silicone/oil ratio, mixing processes, emulsifier levels, the nature of the external and internal phases, and the presence or lack of co-emulsifiers affect the characteristics of final formulations.
Oct 05, 2011 | 11:58 AM CDT
Properties of Vegetal Oil-based Creams in Skin Care
By: Kedar Kumthekar and Jayashree Nagarkar, PhD, I…
Tocopherols and tocotrienols are the major constituents of almond oil, safflower oil and palm oil. They are necessary for the normal growth and metabolism of healthy skin. These oils were formulated in nourishing skin care products and massage creams as part of stable o/w emulsions and were found to have excellent storage stability, flow properties, spreadability and moisturizing properties.