Your interest in achieving fuller lips, often referred to as "Russian doll lips," can be addressed through a procedure known as lip augmentation. This procedure typically involves injecting dermal fillers into the lips to increase their volume and enhance their shape.1. Dermal Fillers: The most commonly used fillers are made from hyaluronic acid, a substance naturally found in the body. Hyaluronic acid fillers can improve the appearance of your lips by adding shape, structure, and volume. The results are noticeable immediately and can last up to six months.The amount of filler needed to achieve your desired look depends largely on your current lip shape and size, as well as the specific product used. However, for a significant increase in lip volume, you may require multiple syringes of filler.2. Gradual Augmentation: To ensure a natural and balanced result, it is often recommended to increase the lip size over several months gradually. This could mean starting with 1-2ml of filler and adding more during follow-up appointments until the desired size is achieved.