Guider til skjønnhetsapparater

What Does “Ultrasonic” Mean on a Beauty Device?
“Ultrasonic” names an energy family, not one treatment. This guide separates surface cleaning, substance delivery, imaging and tissue treatment, then explains which handpiece details and evidence matter.
How Electrical Muscle Stimulation Works Through Skin Electrodes
Electrical muscle stimulation uses pulses delivered through skin electrodes to evoke muscle activity. Learn what affects that response and why immediate contraction, training adaptations and fat-loss claims require different evidence.
Why an Ultrasound Scan Is Different from Ultrasound Treatment
An ultrasound image provides information; treatment deliberately applies an exposure for a tissue effect. Learn how to read a dual-mode system without confusing image brightness, treatment energy or safety evidence.
EMS Tingling but No Contraction: What Can You Actually Infer?
Tingling and muscle contraction are different observations. Learn what an absent visible response can—and cannot—tell you, how to check the documented purpose of a mode, and what information helps a...
Why Electrode Contact Changes an EMS Sensation
EMS sensation depends on electrode contact, skin impedance and the device’s output design. Understand partial contact, compatible accessories and the boundary between a technical explanation and safe device-specific advice.
EMS Parameters Explained: Current, Pulse Width, Frequency and Waveform
Learn how current amplitude, phase and pulse width, frequency, waveform and pulse-train timing describe an EMS signal—and why a screen percentage cannot establish a dose or cosmetic result.
How External Low-Level Optical Body Contouring Is Proposed to Work
External low-level optical contouring delivers light rather than removing tissue. Explore the proposed cellular pathways, the limits of lipid-release experiments, and why circumference changes do not establish fat-thickness loss.