 622-8446. 1-800-622-8446. And that's the number to call. Let's listen to a conversation, Carla, that you had with one of your newer customers. This is Fred. I've been using Collagenate now for about two and a half months. I bought the product specifically on a gamble that it was going to assist me with my left and right knee. I've had chronic discomfort in both knees for approximately six months.