Hi! Several factors could be influencing the longevity of your Botox injections. Dilution of Botox: While it's possible that the Botox solution is being diluted more than usual, reputable practitioners typically follow standardized protocols to ensure efficacy. The dilution ratio, however, can vary between practitioners, but the overall amount of active ingredient should be consistent. It would be worthwhile to discuss this with your injector to understand their specific practices. Individual Variability: People metabolize Botox at different rates. Factors like your muscle mass, metabolic rate, and lifestyle can influence how long Botox lasts. For instance, very active individuals with a higher metabolic rate may break down the product faster. Frequency and Consistency of Treatments: If you are new to Botox, it may take a few treatment cycles for your muscles to become adequately trained to relax, which can lead to longer-lasting results over time. Consistent treatments at regular intervals might help in achieving more prolonged effects. Dosage: The total of 50 units you mentioned for crow’s feet, forehead, and bunny lines is a common dosage, but it might be on the lower end for some individuals. Increasing the dosage slightly under professional guidance can sometimes yield longer-lasting results. Technique: The injection technique and precise placement of Botox can significantly impact how well and how long it works. Ensure that your practitioner is experienced and skilled in administering Botox. Product Quality: Verify that your practitioner uses authentic Botox from a reliable source. Counterfeit or expired products can be less effective.