Apply a layer of the sugar mixture to a small area of your mustache. Spread the mixture in the direction of the hair growth, from the bottom of your nose down toward your upper lip. Cover the hairs completely. Place a cotton strip over the sugar mixture. Use downward strokes to help the strip adhere to the mixture.pply a layer of the sugar mixture to a small area of your mustache. Spread the mixture in the direction of the hair growth, from the bottom of your nose down toward your upper lip. Cover the hairs completely. Place a cotton strip over the sugar mixture. Use downward strokes to help the strip adhere to the mixture.