Read the instructions
Follow the manufacturer's manual, warnings, contraindications, age guidance, maintenance requirements, and usage limits supplied with each product.
Medical guidance
Products on this website are not presented as cures or replacements for diagnosis or professional care. Ask a qualified healthcare professional before using a device if you are pregnant, have an implanted device, have reduced sensation, or have a health condition affected by heat, vibration, or electrical stimulation.
Stop when concerned
Stop using a product and seek appropriate advice if it causes pain, burns, numbness, dizziness, skin irritation, unexpected symptoms, or device damage.