BosDefense Nourishing Shampoo for Non Color-Treated Hair is part of the BosDefense Haircare Regimen which is formulated for those who want to take a more defensive action against thinning hair. BosDefense formulas contain anti-aging ingredients and DHT inhibitors. LifeXtend Complex technology helps stimulate production of keratin protein, which strengthens and fortifies the follicles and hair shaft for thicker, fuller looking hair. Sulfate free, gentle and safer cleansing without potentially harmful ingredients.