8. Conclusion
In the field of hair color, as in many other areas of formulation in general, the technical performance of the product is no longer enough. Consumers are now particularly attentive to the composition of the products they use. In addition to technical and economic constraints, formulators today must strive to develop formulations that are as environmentally-friendly and harmless as possible. Colorists, meanwhile, are seeking to broaden the range of shades available, bringing brilliance, highlights and depth to their stains. Color is now defined by a multitude of colorants. In the case of permanent colorants, it is derived from a combination of bases, which provide the color base, and couplers, which modify the shades to add highlights. Hair color must no longer be perceptible; it must look "natural". Scientists therefore set out to imitate nature, and biomimetic approaches were developed...
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Glossary
Bibliography
Websites
...Events
Perfumes and Cosmetics Congress – Regulatory issues, takes place every year in Chartres.
http://www.congres-parfumscosmetiques.com/fr/
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Regulations
Regulation (EC) No 1223/2009 of the European Parliament and of the Council of November 30, 2009 on cosmetic products, OJ L 342, 22.12.2009, p. 59-209.
Regulation (EC) No 1272/2008 of the European Parliament and of the Council of December 16, 2008 on classification, labeling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation...
Patents
KNUEBEL (G.), KONARD (G.), MICHEL (R.). – Process for the production of 5,6-dihydroxyindolines. US5399713A (1995).
HOEFFKES (H.), SCHUMANN (K.), NEUHAUS (W.). – Colorants. US6818023, US6537330 (2003 and 2004).
SÜNGER (G.), KOLONKO (C.). – Oxidationsfärbemittel zur Färbung keratinhaltiger Fasern mit Luftsauerstoff als einzigem Oxidationsmittel. DE102007056934A1 (2007)....
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