Spectral.dnc-s is indicated for men and women in advanced stages of hair thinning because it delivers numerous compounds performing through complementary pathways.apply six sprays twice per dayshake well before use. apply six sprays twice per day directly in the area of thinning hair. rub in the liquid evenly and wash hands with soap and water immediately after use. do not rinse. spectral.dnc-s should be applied whether hair has been washed or not.for best results, hair should be washed at least five times per week. regular use on a consistent schedule without skipping applications is critical.