SKIN BRIGHTENING FACE MASK Lemon Face Mask You will need: ½ cup of yogurt 1 mashed banana 8 Drops of Lemon essential oil Mix and apply to the face. Leave it on for 10 minutes and rinse. Benefits Of Yogurt For Skin Brightens Skin Tone. Exfoliates Skin. May Help Reduce Acne. Helps Treat Under-Eye Dark Circles. May Delay The Signs Of Aging. Bananas for Face Mask bananas can help increase collagen production, the natural proteins that help keep skin hydrated and smooth.