This is my true, personal, experience. I know about collagen since 2010 and I used to take it occasionally for about a year. After a personal problem I started to use anti-depressants. My pharmacist who is also my friend was familiar with collagen for about 10 years and he insisted that I try the product. I did try it and I am thrilled! I got rid of Xanax, Abilify, etc.! Please try collagen and free yourself from all chemical substances and drugs!!!