Red raspberry leaves have been used for many years dating back to the ancient Greeks and Romans. Red Raspberry leaves are widely used as an astringent supplement. Traditionally, Red Raspberry leaves were added to water and gargled to treat irritations of the mucous membrane or swallowed to soothe the stomach. Red Raspberry leaves are especially popular with women. Some of the illness they used red raspberry leaves to treat included the flu, gum disease, rubella, upset stomach, hangovers, diarrhea, fevers, vomiting, menstrual problems, and inflammation. Red raspberry leaves have also been used for a mouth rinse to treat sore throats and irritations of the mouth. The most popular use of red raspberry leaves would be for pregnancy .It has been known to help with nausea associated with pregnancy and to ease the pains of delivery. For woman that are not pregnant and have menstrual issues red raspberry leaves are known to regulate the menstrual cycle and relive the symptoms of PMS. Red raspberry leaves can also be used on the skin as an astringent. It’s good for people suffering from acne and can improve skin firmness. Red raspberry leaves have also been found to lower blood sugars in people with diabetes. Beware though if taken in large does the red raspberry leaves could cause the blood sugar to drop to low. There have been few side effects reported when taking red raspberry leaves.