From Caper to Prickly Pear for Dermatitis to Dual Phase Mouthwash: Literature Review

By: Charles Fox (See In Memory Sidebar)

Posted: June 29, 2010, from the July 2010 issue of Cosmetics & Toiletries.

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Natural-looking/feeling hair dye: L’Oréal also has disclosed a hair dye composition containing one or more hydrophobic film-forming polymers, one or more coloring bases, and one or more volatile solvents.⁹ Such a composition is said to give a natural and aesthetically pleasing color to the hair and to preserve the physical qualities of the hair fibers. A red hair dye example is shown in Formula 4.

Granulated shampoo: Dow Corning Corp. discloses granulated shampoos comprising surfactants agglomerated with solid, water-soluble, water-dispersible or water-insoluble particulate carriers.¹⁰ The shampoo compositions also preferably contain a conditioner consisting of an organopolysiloxane. The described shampoos dissolve readily with the formation of foam in hot or cold water; are generally perceived as soft in their dry, free flowing state; and provide a pleasant feel on skin. The granulated shampoo can be packaged in various biodegradable wrappers such as paper, which is more environmentally friendly than plastic sachets, and does not deteriorate during storage.

Makeup
Liquid polyester in oil: L’Oréal has patented cosmetic makeup or care compositions based on polyester in an oily phase and their uses.¹¹ The inventions employ at least one liquid polyester obtained by the condensation of an unsaturated fatty acid dimer and/or trimer and diol. In addition, the compositions are either free from lipophilic gelling agents or contain them, at most, at 10% w/w. The invention also relates to a method of making up the face and body using the described composition. An example lip gloss is shown in Formula 5.

Polymeric film to protect lips: L’Oréal also has disclosed a cosmetic process for the treatment of lips utilizing a composition containing a film-forming polymer and a siloxane.¹² The method involves applying the composition to form a film on the surface of the lips. An example is shown in Formula 6.

Sunscreens
Multimodal UV protection: Beiersdorf has patented cosmetic preparations containing titanium dioxide with multimodal particle size distribution and their combination with other sunscreens.¹³ The titanium dioxide used has a particle size distribution of at least two maxima. Two types of titanium dioxide having different particle sizes can be used and coated differently; e.g., with dimethicone/methicone copolymer, dimethoxycaprylyl silane and aluminum hydroxide and/or silica. These sunscreen emulsions are prepared in combination with other sunscreens. An example is shown in Formula 7.