Take the case of some of the most popular means to determine whether it is worth a try.
Ginkyo biloba - this popular herb is thought to improve blood flow to the brain and skin. Botanists believe that the increased blood flow in the area of the brain brings more nutrients to the hair follicles thus promoting hair regrowth. The recommended dose is 120 160 mg dry extract per day spread over three doses.
Green tea (Camellia sinensis) - believes that the catechins in green tea, the enzyme 5-alpha reductase that converts testosterone into hair-unfriendly DHT inhibiting. Therefore believed to be effective in the prevention and treatment of male pattern hair loss. You should drink several cups of green tea each day or take in capsule form as instructed by the manufacturer.
He Shou Wu (Polygonum multiflorum) - also known as Fo-Ti has this Chinese herb traditionally used to reduce hair loss. Found in many commercial preparations or tea and capsules.
Pygeum (Pygeum africanum) - from the bark of an evergreen tree that looks like green tea derived. It is commonly used to treat prostate problems and male pattern baldness. Users should take 60 to 500 mg per day as tablets or capsules.
Saw Palmetto (Serano repens) - this is the current treatment of choice for many men to protect their ability, the prostate, slow hair loss and stimulate hair growth. It is the heart of a large number of commercially prepared hair loss treatments but can easily be obtained in pure form. The recommended dose is one capsule of 160 mg twice daily, but make sure that the ingredients made from the berry extract not the dried berries themselves.
Nettle (Urtica dioica) - This was seen as a way to encourage hair loss because of its ability to prevent blocking the conversion of testosterone into DHT. It can be taken as tablets or capsules with an optimal dose of 50-100mg per day. It is particularly effective when combined with pygeum and saw palmetto.