This Serum is a natural hair growth formula that prevents dandruff and stops itching by killing pathogens like bacteria and fungi at twice the rate of Hairreau Spray. Hairreau Follicle Serum treats Hair Follicle Witheration, a condition that's cause by pathogens and hormonal changes that causes the follicle to wither and become week and nonfunctional. This causes hair breakage that leads to hair loss. Once Hairreau Serum starts the pathogenic destruction of bacteria & fungi deep down in the follicle bed, the follicle starts to rejuvenate and forces out a strong hair shaft that leads to exponential hair growth. The Hairreau Follicle Serum can be used as a night serum and Hairreau Spray can be used during the day.