Bosley Healthy Hair Follicle Energizer For areas of thinning & low density hair. What it is: Advanced leave-in treatment drops. What it does: Protects and repairs the hair follicle while helping to support healthy hair function in areas of low density. How to use it: Apply one drop to low density areas, leave in. May be used twice a day Features and Benefits: LifeXtend Complex - Hydrates and nourishes while strengthening and fortifying the follicles and hair shaft for thicker, fuller looking hair Scalp Activators - May help raise follicle energy levels. Biotinyl-GHK - Helps protect and repair hair follicles. Healthy Hair Treatments are for both men and women who are experiencing certain types of hair loss. BosleyPro Healthy Hair Treatments include FDA certified treatments proven to re-grow hair!