AL MASNOON fennel seed powder ( Sounf Powder ) 100 g saunf helps in losing weight too. Fennel seeds have diuretic properties that help in flushing out unwanted toxins from the body. With the ability to fasten the metabolism rate saunf helps in shedding some extra kilos. You can include saunf powder in your weight loss regime too. Fennel seeds have acid iron copper folate and niacin which helps in increasing hair growth. Fennel seeds powder help in fighting oxidative stress which prevents hair growth and leads to problems like hair fall. Using saunf powder is a great way of increasing hair growth.