There is no direct evidence or scientific basis to suggest that having an irregular heavy period, where you experience significant blood loss, will cause lip fillers to dissolve or go away faster. Lip fillers such as Juvéderm Voluma, Volux, or Ultra Plus are composed of hyaluronic acid, a substance that naturally integrates into the tissues where it is injected. The longevity of lip fillers is primarily influenced by factors such as the type of filler used, the individual's metabolism, lifestyle factors (such as smoking or sun exposure), and the skill of the injector. While significant blood loss from a heavy period can lead to temporary changes in your body, such as fatigue or anemia, it does not directly impact the breakdown of hyaluronic acid fillers. However, if you have concerns about your menstrual cycle or any underlying health conditions, it is always a good idea to discuss these with your healthcare provider before undergoing cosmetic procedures. Additionally, ensure you consult with a qualified and experienced practitioner for your filler treatment to achieve the best and safest results.