Squeeze one whole lemon and add a tablespoon of baking soda until you make a thick creamy paste. Leave on for up to 20 min, then rinse with cold water. Make sure you make a thick creamy paste. If it's too watery, add more baking soda.
Gold Leaf Manicure Important Tip! Don't use the gold leaf available at craft stores, because they contain toxic impurities and you don't want to accidentally inhale or ingest them! Use cosmetic or edible grade gold leaf instead.