LifeCell Hair Restoration SystemPrecautions: This product will not prevent or improve hair loss related to: Pregnancy The use of some prescription and non prescription medications Certain severe nutritional problems (such as very low body iron or excessive vitamin A intake) The recently discontinued use of birth control pills Low thyroid states (hypothyroidism) Chemotherapy Diseases which cause scarring of the scalp Damage from use of haircare products that cause scarring or deep