How much is fo-ti adequate for the best hair loss prevention results?

Fo-ti has long been used in traditional medicine to help promote hair growth and reduce grey hairs. The appropriate dose taken depends on the user's health, age, and other factors. For now, there isn't enough scientific data to determine the appropriate dosage for fo-ti although 3-6 grams of raw extract or 6-12 grams of the processed extract have been used, according to the Natural Medicines Database. To be safe, you should go by the directions on the product label.