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Phytosphingosine for Skin Differentiation and Other Topics: Literature Findings
By: Charles Fox, Independent Consultant
Posted: December 1, 2009, from the December 2009 issue of Cosmetics & Toiletries.
page 8 of 8
Gemini amphiphiles: Yamamoto et al. have reviewed oil gelation using a novel Gemini-type peptide amphiphile.19 Gemini amphiphiles, having novel properties not found in other surfactants, have become the subject of recent research. The described study developed a process for the synthesis of sodium dilauramidoglutamide lysine (DLGL) that consisted of two lauroylglutamates linked by glutamic acid-lysine-glutamic acid as a spacer. The company investigated its properties and characteristics, confirming that DLGL exhibits high affinity to hair and skin as well as penetration and repair capabilities. Moreover, DLGL showed oil gelation properties. A variety of oil gels were formed with 0.3% DLGL and the material was found to improve: sensory attributes, the water content in the SC, and makeup removal capabilities. Researchers suggest DLGL gel for use in makeup removers, skin care oil gels, massage oil gels and hair treatment gels.
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1. Y Schiemann et al, Polar emollients in cosmetic formulations enhance the penetration and biological effects of phytosphingosine on skin, Colloids and Surfaces, A: Physicochemical and Engineering Aspects 331(1-2) 103–107 (2008) (in English)
2. JP 2009 139,335, Cultured skin wrinkle model, its manufacture, and antiwrinkles drugs evaluation method, Shiseido Co, Ltd, Japan (Jun 25, 2009)
3. KR 2009 56,200, Hair dyes containing gallnut and/or Eclipta prostrata extracts, Amorepacific Corp, S. Korea (Jun 3, 2009)
4. WO 2009 73,759, Pigment-functionalized cationic polymer compositions for hair coloring, Boston Cosmetics, LLC, USA (Jun 11, 2009)
5. FR 2,924,722, Method of selecting agents for modifying the shape of the hair and cosmetic use of the active agents, L’Oréal, France (Jun 12, 2009)
6. JP 2009 132,648, Hair treatment agents containing monovalent or divalent metal salts and sericin hydrolyzates and their use between reduction and oxidation processes, Seiren Co, Ltd, Japan (Jun 18, 2009)
7. WO 2009 74,463, Hair-conditioning products containing imidazolines and selected silicones and/or cosmetic oils, Henkel AG & Co KGaA, Germany (Jun 18, 2009)
8. DE 102,007,060,528, Hair-conditioning products containing imidazolines and selected silicones and/or cosmetic oils, Henkel AG & Co KGaA, Germany (Jun 18, 2009)
9. WO 2009 74,366, Shampoos with a surfactant and hair care combination, Henkel AG & Co KGaA, Germany (2009)
10. US 2009 151,087, Anhydrous composition comprising at least one oxidation dye, at least one complex of hydrogen peroxide, and a specific polymer, and a coloring process using the same, M Mario et al, France (Jun 18, 2009)
11. EP 2,072,035, Process for bleaching human keratin fibers using an anhydrous composition and a particulate organic amine, and device suitable therefore, L’Oréal, France (Jun 24, 2009)
12. JP 2009 137,877, Air-oxidative hair dye agents and production, Kao Corp, Japan (Jun 25, 2009)
13. Miura Y et al, Algorithm for in vitro sun protection factor based on transmission spectrum measurement with concomitant evaluation of photostability, Photochemistry and Photobiology 84(6) 1569–1575 (2008) (in English)
14. H Shoji, Silicone resin waxes: A new family of high performance materials, Fragrance J 37(5) 35–38 (2009) (in Japanese)
15. H Managi et al, Characteristics and cosmetic applications of renewably sourced propanediol, Fragrance J 37(5) 61–64 (2009) (in Japanese)
16. A Lehmann et al, Starch based thickening agents for personal care and surfactant systems, Colloids and Surfaces, A: Physicochemical and Engineering Aspects 331(1-2) 150–154 (2008) (in English)
17. US Patent 6,464,966, P Simon, Stable w/o/w emulsion and its use as cosmetic and/or dermatologic composition (2002)
18. JP 2009 57,332, Liquid crystal-silica composite dispersions, and production thereof, Shiseido Co, Ltd (Mar 19, 2009)
19. M Yamamoto et al, Oil gelation utilizing a novel Gemini-type peptide amphiphile, Fragrance J 37(5) 42–45 (2009) (in Japanese)