I started using BioSil Advanced Collagen Generator in October 2011. I was suffering with joint stiffness and pain in my knees, knuckles/fingers of both hands and shoulders. After taking BioSil capsules regularly for 2 weeks, I noticed a remarkable difference in my joints. No pain or stiffness. As I continued using BioSil, I also saw the additional benefits from using this supplement. My nails are no longer weak, thin or brittle. My nails have grown strong and healthy looking. My skin is smooth and has a healthy glow. I constantly get compliments about my glowing complexion which makes me look much younger than my 53 years! And my hair grows thicker than before. I have taken this supplement for the past 10 months. When I don't take BioSil, I definitely feel the difference...joints stiffen up and start to ache. So I make it a point to keep an extra bottle of the 120 capsules on hand. With healthy eating habits, exercise and my BioSil supplement, I look and feel 20 years younger!