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Skin Care
New in Skin Care (page 3 of 21)
Dec 04, 2012 | 11:45 AM CST
Formulating for Electrolyte Resistance in Conjunction with Sensory Appeal
By: Marie Ollagnier; Gordon Hsu, PhD; Bryan Moran;…
Skin care formulations often are enriched with high levels of electrolytic ingredients for various skin benefits. However, these have a negative impact on the viscosity, texture and stability of a system. Described in this article is a multifunctional polymer that is designed to provide excellent electrolyte resistance along with a pleasant sensory profile, as will be shown.
Dec 04, 2012 | 11:40 AM CST
A Compound to Increase Natural CoQ10 for Anti-aging Benefits
By: L. Bergeron; K. Cucumel, PhD; Y. Guerif; L. Mu…
Oxidative stress is a major factor in skin aging, thus a topical compound was designed to increase anti-oxidant coenzyme Q10 (CoQ10) within the body. Described here are in vivo and in vitro studies assessing the compound’s antioxidant and anti-aging capabilities. Results indicate that the modulation of intracellular CoQ10 and its binding proteins appears to protect skin from oxidative damage.
Dec 04, 2012 | 10:55 AM CST
A Dermatological View—Moisturizers: Evidence for Efficacy
By: Nava P. Greenfield, Yale School of Medicine; a…
Despite their widespread use and applications, the scientific literature on moisturizers lacks strong evidence to support dermatological use. This article explores current literature on the efficacy of moisturizers to help the industry understand their mechanisms and role in treatment.
Nov 01, 2012 | 02:04 PM CDT
Characterizing and Evaluating the Effectiveness of Volcanic Pumice Exfoliants
By: M Estanqueiro (MD), G Bossolani, MH Amaral (Ph…
Pumice has a recognized application as an abrasive agent to promote exfoliation of the skin. In this study, different particle size fractions of pumice sampled from several geologic occurrences in São Miguel’s island, the Azores archipelago, were used in the preparation of exfoliation formulations. Gels and soap were prepared and characterized, and their efficacy evaluated.
Nov 01, 2012 | 12:43 PM CDT
Ingredient Profile—Sorbic Acid/Potassium Sorbate
By: Michael J. Fevola, PhD, Johnson & Johnson
SorbH and KSorb have become increasingly popular options for cosmetic preservatives due to their worldwide status as Generally Recognized As Safe (GRAS) food ingredients and their long and successful use history.
Oct 01, 2012 | 02:11 PM CDT
Designing Mild Personal Care Products: A Case Study
By: Paul Cornwell, PhD, and Jeremy Goodwin, PhD, Z…
This article reviews the mechanisms underlying skin irritation and sensitization, and methods used in a case study to test cosmetic products for their potential to cause irritation. It also covers the main skin conditions that can influence susceptibility to irritation, as well as ingredients affecting the mildness of cosmetic products.
Oct 01, 2012 | 02:06 PM CDT
Formula Troubleshooting—Anhydrous Product Instability
By: Peter Tsolis, The Estée Lauder Companies; and …
Many anhydrous products are mixtures of oils, esters, fatty alcohols, waxes, preservatives, fragrances and various pigments. Combining these materials is a complex undertaking, and varying the concentration even slightly changes the dynamics and aesthetics of the final product; in the worst cases, it causes instability.
Sep 04, 2012 | 11:31 AM CDT
Saccharide Isomerate to Deeply Hydrate Skin and Scalp
By: Jochen Klock, PhD, and Volker Rosenberger, PhD…
Saccharide isomerate, designed to closely resemble a carbohydrate complex found in human stratum corneum, is shown here to provide up to 72 hr of deep hydration to skin and, for the first time, rinse-off soothing to the scalp. Its unique binding mechanism to skin and scalp create new opportunities for leave-on and rinse-off products.
Aug 15, 2012 | 01:13 PM CDT
Polyacrylate-33 for Thickening and Suspending in Low Surfactant Cleansers
By: Monique Adamy, Anne-France Leron, Charles Phan…
Described herein is a hydrophobically-modified acrylic copolymer, polyacrylate-33, which is designed for low-to-medium surfactant-containing cleansers. The ingredient is shown to display high thickening efficiency and good suspension properties and shear-thinning rheology in sulfate-based and sulfate-free chassis. Further, it enables transparent formulations in the presence of salt with improved foaming and sensorial properties.
Aug 15, 2012 | 01:07 PM CDT
PIT Versus PIF for the Rational Formulation of Emulsions
By: Steven Abbott, PhD, Steven Abbott TCNF Ltd. an…
This article deliberately pushes the boundaries for cosmetics scientists, showing how the much-used phase inversion temperature (PIT) technique is a limiting special case of a more versatile, rational approach to surfactant optimization: HLD-NAC. This simple way of understanding the basic interactions within emulsion formulations can be generalized to create totally new ways of formulating stable emulsions.