Since I'm in my late 20s, I can feel my skin gradually losing its elasticity... Haha, I got it from a dermatologist!! I received both 300 shots today, so I'm not sure about the effect yet, but I feel like I'm craving it?? There is such a thing! The pain was worse with the Shrink nerve. To be honest, I could tolerate the ball neuter, so I talked to the doctor about it. But with the Shrink nerve, it felt like I was getting root canal treatment even though I wasn't even at the dentist... Haha anyway, I received it because I heard it was good, and I'll come back with a review later in a month!!