Compliance is the most critical barrier in cross-border herbal trade. Products must meet FDA (U.S.), EFSA (EU), or local health authority regulations. Key certifications to look for include GMP (Good Manufacturing Practice), HACCP (Hazard Analysis and Critical Control Points), and ISO 22000. For organic markets, ensure the supplier holds USDA Organic or EU Organic certifications. Additionally, packaging must comply with labeling laws, clearly stating ingredients in Latin/English and providing allergen warnings.