Simply Zen Stimulating Scalp Lotion. This hair treatment has been tested and proven to promote the healthy growth of hair by stimulating the folicle of the hair. Prevent hair loss with this natural and professional hair treatment. An excessive and anomalous hair loss can be counteracted by an efficient program of intensive stimulation of the hair follicle. Its formulation has been studied to counteract the excessive hair loss while stimulating the hair follicle and bulb, encouraging hair re-growth.