Here are some main contraindications:
Pustular skin disorders and viral skin diseases
Facial nerve paralysis
Trigeminal neuralgia
Infectious diseases
Recovery period after deep or mid-grade peel (at least 3 months)
Implanted gold thread
Cardiovascular and oncological diseases
Implanted cardiac stimulator or pacemaker
Acute sinusitis
Psoriasis and chronic dermatitis
Couperose
Intrauterine device
These are just the main ones, Always do your own Due Diligence!