Compliance is non-negotiable in the beauty industry. Ensure products meet CE (LVD/EMC), RoHS, and FCC standards for electrical safety. For skin-contact devices, verify that materials are medical-grade silicone or hypoallergenic metals to prevent adverse reactions. Key performance benchmarks include battery life (lithium-ion stability), motor RPM for cleansing brushes, and energy output levels (Joules/cm²) for light-based therapy devices. Always ask for third-party clinical test reports to validate efficacy claims.