Authentic product. Used for 2-3 weeks. When shaken, it still makes a sound, and it also adheres properly to the brush. As a bonus, I will also include the D Scalp eyelash serum. Product Name: Armada Egutam Eyelash Serum EGUTAM Contents: Eyelash growth serum Key Features: Growth Support: Promotes healthy eyelash growth, considering the eyelash growth cycle. Contains beauty ingredients: Nourishes eyelashes, leading to stronger and more resilient lashes. Easy-to-use formula: Lightweight and perfect for use before and after makeup. Does not interfere with eye makeup. #Egutam