Lemongrass leaf powder can be used as a culinary spice for flavor in soups, curries, and sauces, as well as in teas for its health benefits. Health uses include supporting digestion, reducing inflammation, and its antioxidant properties. It's also used in folk medicine for pain relief, to lower blood pressure, and as a mild diuretic. 

Culinary uses

Flavoring: Add to soups, curries, sauces, and marinades for a citrusy flavor.

Tea: Steep the powder in hot water to make tea, often sweetened with honey or jaggery.

Broths: Use to create flavorful, aromatic broths for soups.

Seasoning blend: Mix with salt and other spices for rubs, sauces, and savory dishes. 

Health and medicinal uses

Digestive aid: May help with indigestion, bloating, and stomach cramps.

Antioxidant and anti-inflammatory: Contains antioxidants that fight free radicals and has anti-inflammatory properties.

Diuretic: Can help the body eliminate toxins and excess fluid.

Pain relief: Traditionally used as a pain reliever and may help with muscle and joint aches.

Cardiovascular support: May help lower blood pressure.

Germ fighter: May help kill germs and has been shown to have antibacterial and antifungal properties. 

Other uses

Aromatherapy: The essential oil, which can be extracted from the powder, is used for aromatherapy to help reduce stress and fatigue.

Skin and hair care: The powder is used in some cosmetic and skincare products.

Source of vitamins and minerals: It is rich in vitamins A and C, potassium, and magnesium, which support overall health.