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May 06, 2003 | 02:00 AM CDT
How Do I Thicken my Cosmetic Formula
By: Dennis Laba, Elementis Specialties
This article explains how to select a thickener from nine basic thickener groups that enable the chemist to change a product's viscosity and rheological properties, such as stability, feel and flow.
May 06, 2003 | 02:00 AM CDT
O/W Emulsions Enriched with Vitamin E
By: Jelena Djordjevic, Gordana Vuleta and Jela Mil…
Vitamin E has an important protective function for the entire organism. It is believed that the broad biological activities of vitamin E are due to its ability to inhibit peroxidation and stabilize biological membranes.
May 06, 2003 | 02:00 AM CDT
Synthetic Copolymers as Rheology Modifiers for Personal Care Formulations
By: C Jones
This article describes the mechanisms of acrylate and polyurethane copolymers used as rheology modifiers. It gives examples of their use, and suggests new uses in emulsification and in suspending particles in clear formulations.
May 06, 2003 | 02:00 AM CDT
Bring Food to the Soul of your O/W Emulsion with a Dual Rheology Stabilizing System
By: Pascale Rossi, Uniqema Health & Personal Care
Cosmetic emulsions can be stabilized via bulk rheology and interfacial rheology by using a unique synergistic blend of two polysaccharides in a technology derived from the food industry.
May 06, 2003 | 02:00 AM CDT
Artemia Extract: Toward More Extensive Sun Protection
By: N. Demloge, E. Bauza, K. Cucumel, D. Peyronel …
An extract for the plankton Artemia salina protects DNA from UV damage and decreased UV-induced inflammatory cytokines, suggesting a way to help sunscreen protect skin from UV damage.
May 06, 2003 | 02:00 AM CDT
Properties of a Pseudoceramide Multi-Lamellar Emulsion In Vitro and In Vivo
Byeong Deog Park and Yoon Kim, NeoPharm; MyungJin …
Tests of a pseudoceramide multi-lamellar emulsion formulation for its stability and its assistance to barrier recovery in vivo on damaged skin suggest dermatologic and cosmetic possibilities.
May 06, 2003 | 02:00 AM CDT
Preservative Efficacy Testing of Aqueous Cosmetics and Drugs without Counting Colonies
By: D.S. Orth and K.S. Delgadillo Eck, Neutrogena …
A miniaturized system using broth enrichment followed by either streaking on agar or fluorescence treatments can eliminate colony counting in the linear regression method of preservative efficacy testing.
May 06, 2003 | 02:00 AM CDT
Anti-Wrinkle Activity of Hydroyzed Ginseng Saponins
By: Yeom, MH ;Sung, DS; Woo, KS; Kang, BY; Kim, DH…
Hydrolyzed ginseng saponins, produced by enzymatic hydrolysis, increase collagen synthesis and decrease the expression of MMP-1. Also, the formulation of nano-emulsions containing hydrolyzed ginseng saponins significantly in cases the collagen synthesis.
May 06, 2003 | 02:00 AM CDT
Optimizing Skin Delivery
By: Joel L. Zatz, Rutgers
For best skin-care product performance, formulators should optimize delivery of actives to the skin by identifying and focusing on the target site using appropriate delivery technology. Part of the Series: Skin Delivery 2000.
May 06, 2003 | 02:00 AM CDT
ATP Bioluminescence: Detecting Microbial Contamination in Dentifrices
By: Luis Jimenez, Consumer Product Testing Co.
In tests on eight dentifrice formulations, a bioluminescence system based on adenosine triphosphate (ATP) detected tested microorganisms qualitatively within 24-27 hours, compared to 5-7 days required for quantitative detection by standard methods.