Hair growth stimulating device to obtain a non-chemical hair growth stimulation comprising an ultrasound transducer (UST), and a driver (DE) for the ultrasound transducer, wherein the driver is arranged for having the ultrasound transducer (UST) generate an ultrasound signal having a frequency not exceeding 100 kHz, preferably 20 kHz, at a power not exceeding 500 mW/cm2, preferably 250 mW/cm2. The frequency may be subject to a frequency sweep not exceeding 20%, preferably 10%. Pulses having a pulse width between 10 ms and 500 ms may be used.
