A device for stimulating hair growth, nurturing hair, maintaining existing hair, elongating the hair life cycle and keeping hairs in the active growth stage and/or decreasing the number of hairs in the dying stage, can include one or more radiation sources emitting radiation having a wavelength in a range of about 430 nm to about 495 nm； one or more radiation sources emitting radiation having a wavelength in a range of about 630 nm to about 700 nm； and one or more electrodes extending from the device and configured to contact a scalp of a user to apply a microcurrent to the scalp.
