As a cosmetic ingredient, the supplier must provide a COA (Certificate of Analysis) and an MSDS/SDS (Material Safety Data Sheet) compliant with GHS standards. For premium or eco-friendly markets, prioritize suppliers with COSMOS or ECOCERT certification, which validates the natural origin of the raw materials. Ensure the product is listed in the INCI (International Nomenclature of Cosmetic Ingredients) and complies with REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) for European distribution.