Your skin is your largest organ. In Part 2 of our Preparing for a baby series, I look at chemicals in pregnancy: what goes on your body, from skincare to the clothes you wear for nine months, what the evidence says, what it doesn't, and the simple swaps both parents can make.

Global Standards, the body behind GOTS, has launched a new certification covering fibres organic standards never touched, including recycled polyester. Babywear leans cotton, but children's clothing is far more polarised than that, uniform, sportswear and swimwear mean polyester is a huge share of what school-age children actually wear. Until now, none of it had a credible certification to point to.