A beauty crackdown is underway across the Atlantic — but don’t expect it stateside. Starting next week, manufacturers and retailers in the European Union will be forced to scrap any existing stock and cease production of future cosmetic products that contain 15 newly banned chemicals. In the US, however, the same substances flagged as potentially dangerous overseas are still allowed on store shelves across much of the country. The new policy in the EU, set to take effect May 1, targets