Effective for all skin types and skin issues. Significantly reduces eye circles, dark or puffy eyes, aging spots, uneven skin tone, wrinkled skin. Used twice daily with 5 to 10  mists per use, four ounces should last two to four months. Individual results do vary. For best results on scalp, use the spray at the base of the hair, wet or dry.  The average person sees a 20 % improvement in face youthfullness  and hair volume incresase within 3 weeks to 3 months of use.