Thank you for your feedback. I want to assure you that the 30ml, 50 ml and 100 ml bottles are filled with the exact same fragrance formula. The only difference between the three sizes is the volume of the product, not the quality or concentration. No worries though, we're all about risk free purchases. We never want you to keep something you're not completely in love with, so please feel free to reach out our customer service team at smellgood@nspiredbeauty.com to arrange the exchange or return process.