Cosmetic Chemistry

Exploring cosmetic chemical concerns – in C&EN

Click to view the full graphic on the C&EN site

Compounds in cosmetics such as phthalates and parabens have often been subject to concerns around their use, but the issue of cosmetic ingredient safety is rarely a black and white one. The latest edition of Periodic Graphics in C&EN summarises some of the evidence surrounding these components to give a balanced picture of how concerned we should be. Click to view the full graphic on the C&EN site.

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The chemistry of henna

The Muslim festival of Eid al-Adha started on Sunday evening and runs through until Thursday. As part of the celebrations, some create impressively intricate art on their hands using henna. Here we take a look at the molecules in henna that allow it to be used as a dye, and how this process works.

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The Chemistry of Nail Polish

The Chemistry of Nail Polish – Polymers, Plasticisers and Pigments

Infographic on the chemistry of nail polish. The graphic highlights the film-forming polymers, such as nitrocellulose, used in polishes, the solvents, such as ethyl acetate, that give it its characteristic smell, and some of the different pigments used.
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Painting your nails with nail polish might not seem like a particularly complex chemical process, but there’s much more to it than meets the eye. Polymerisation, thixotropic agents, solvents and thermochromism are all terms you might expect to hear more frequently in a lab than in a nail salon, but they can all crop up in relation to nail polish. In this graphic and article, we take a look at the different chemistry that comes together to colour your nails.

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