Environ Electro-Sonic DF Mobile Device helps stimulate the skin, allowing significantly higher concentrations of active ingredients to reach where the skin needs them most. DF Technology combines two sophisticated technologies in a single probe—low-frequency Sonophoresis and pulsed Iontophoresis. When these are combined with the Environ range of products, they make a lasting difference to the appearance of your skin.Side effects: Clients with excessive metallic fillings may experience a metallic taste in the mouth - this is normalErythema - superficial reddening of the skin may be observed, which subsides soon after the treatment has been completedWhat Environ products should you use with the device? Tri-Peptide Avance Elixir: This will help with lines & wrinkles Peptide Enriched Frown Serum: This will help with frown lines HA Intensive Hydrating Serum: This will help with dehydration & plumping Retinol Serums: to help with pigmentation, sun damage and textural problems Vita Enriched Colostrum Gel: For more relieved and soothed-looking skin Device Includes: Electro-Sonic DF, Travel Bag, 2x Conduction Cloths, Instruction Booklet, Charger, USB Charging Cable, 4x International Plug Adaptors.