Cosmetics are, more than ever, at the crossroads of sciences. Research in cosmetics benefits from the most modern methods: DNA chips, electronic microscopes, high-resolution chromatographers, image analysis
technologies, etc. Biology allows scientists to gain understanding of the skin, what it lacks and needs, what its reactions and its ethnic characteristics are, etc.
New models of reconstructed skin, ever more complex, allow the study of the innocuousness and efficacy of the products. The metabolic engineering of plants allows scientists to discover ever more efficient new
extracts.
Chemistry evolves and green chemistry is a source of innovations. Physicochemistry and galenics [1] give rise to products with more effective surface properties, long lasting
products, tensors, compacted powders with motifs, etc.