Compliance is non-negotiable in the personal care sector. You must ensure the supplier provides a Material Safety Data Sheet (MSDS) and a COA (Certificate of Analysis) for every batch. For the US market, products must meet FDA registration requirements, while for the EU, adherence to Regulation (EC) No 1223/2009 and ISO 22716 (GMPC) is mandatory. Additionally, verify that the ingredients are free from prohibited substances like parabens, phthalates, or triclosan depending on the target market's latest environmental and health regulations.