Many women experience mild to moderate hair loss during pregnancy and after childbirth. Because of this, many breastfeeding mothers use hair-enhancing products like Nioxin to improve the growth and strength of their hair. There are no known aside effects associated with using Nioxin during pregnancy.
Because Nioxin is applied directly to the hair, very little of it is absorbed into the blood steam and none passes into breast milk.
Effects on Pregnancy
The manufacturer's of Nioxin state that there are no known contraindications or side effects associated with Nioxin during pregnancy or any other life-stage.
Severe hair loss during breastfeeding may be a sign of a medical condition such as postpartum thyroiditis or malnutrition.
Lacation expert Dr. Jack Newman, author of the Ultimate Breastfeeding Book of Answers, notes that few topical drugs pass into breast milk in detectable quantitites.
Because Nioxin is considered to be safe for mothers who are pregnant and nursing, it is often recommended instead of internal drugs like Rogaine and Propecia, which may pass into breastmilk and cause unintended side effects.