I am 40 and have had creeky knees since I was 19 from a car accident I was in. Since I started taking this after day #4 I noticed that I can run up the stairs and my knees weren't making that noise anymore! I add this to my coffee every morning and I'd have no idea it was in there. No texture, no taste, no film in my mouth. The last Colligan product I tried gave me such bad acne. Not the case with this brand. I love it!