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New in Formulating (page 62 of 66)
May 06, 2003 | 02:00 AM CDT
Cationic Emulsifiers: A Most Underutilized Category
By: Ken Klein
Cosmetic chemists have at their disposal a seemingly endless supply of emulsifiers from which to choose. By far, the most popular category of emulsifiers is “soap"–the reaction product between a fatty acid typically stearic acid) and an alkali earth metal (typically sodium hydroxide, occasionally potassium hydroxide).
May 06, 2003 | 02:00 AM CDT
Procyanidin B-2 and the Hair Growing Activity of Proanthocyanidins
By: T Takahashi, A Kamimura and Y Yokoo, Tsukuba R…
Purified apple juice provides procyanidin B-2, a hair growth stimulant with demonstrated effects in murine models both in vitro and in vivo, and in clinical trials on humans with male pattern baldness.
May 06, 2003 | 02:00 AM CDT
Refractive Index Matching: Principles and Cosmetic Applications
By: James Ziming Sun, PhD, Michael C. Erickson and…
Clear emulsion formulas can be achieved by matching refractive indexes (RI) of water phase and oil phase. The match is achieved by varying the ratio of water and glycols, as show in several skin and hair care formulas.
May 06, 2003 | 02:00 AM CDT
Video Imaging in the Measurement of Makeup Efficacy and Performance
By: Rodolphe Korichi, LVMH Lab R&D
Video imaging techniques add quantitative data about the visual effects of makeup when evaluating efficacy and performance of products such as mascaras, lip colorants, facial foundations and nail enamels.
May 06, 2003 | 02:00 AM CDT
An Olive Oil- and Wheat-Derived Lipoprotein Emulsifier
By: M. D'Angelo, G. Proserpio, and G.B. Rastrelli,…
Olive oil and hydrolyzed wheat protein can be combined to form a lipoprotein that functions as an emulsifier and a "green" surfactant.
May 06, 2003 | 02:00 AM CDT
Shampoo Surfactants: The Anionics
By: Ken Klein, Cosmetech Laboratories Inc.
Understanding the structure function relationships of anionic surfactants will enable the formulator to achieve shampoo formulations that are well balanced, cost effective and functional.
May 06, 2003 | 02:00 AM CDT
Polyurethane-14 AMP-Acrylates Copolymer: A Hair Fixative Technology with "Memory"
By: Gary Martino, Melissa Vitale and Penny Vanemon…
Polyurethane and acrylates chemistry have produced a hair styling polymer that delivers hold, flexibility and "shape memory" in tests of viscosity, particle size, drying time, tack, film toughness and spot weld bond strength.
May 06, 2003 | 02:00 AM CDT
Zanthoxylum alatum Extract Inhibits Skin Sensitivity
By: G. Guglielmini and A. Cristoni, Indena S.p.A.
A lipophilic extract from the fruits of the Chinese plant Zanthoxylum alatum Roxb can be diluted with oleyl alcohol to yield a cometic ingredient that soothes sensitive skin.
May 06, 2003 | 02:00 AM CDT
Fragrancing Hair Care Products—An Overview
By: Philip Carrubba, Edward Matson and Elizabeth C…
This article reviews the various technical considerations of which the formulator should be aware relating to fragrancing a wide variety of reactive and non-reactive hair care products, including shampoos, conditioners, styling gels, mousses, hair sprays,
May 06, 2003 | 02:00 AM CDT
Formulating Water-resistant Sunscreen Emulsions
By: Ken Klein, Cosmetech Laboratories
Note that today we aren't permitted to use the term "waterproof" since the FDA believes that this term implies an absolute-it never washes off-and feels that consumers might be inclined not to reapply sunscreen after swimming or perspiring. So, we must now use the term "very water resistant" in its place.