NO NOTICEABLE EFFECT
I've been taking this every day since I received it, and I am more than halfway done with it, and can say that there has been NO NOTICEABLE EFFECT.  I missed the return deadline so I guess I'll finish it, but I really don't understand all these positive reviews.  In fact, I probably won't be buying any collagen supplement.  Getting the feeling that it's all hooey!  I will say that the taste (vanilla) was a little strong but not terribly offensive (I would not say delicious), but mixes well when I pour my hot coffee into it every morning.  And yes, it's true that the container is only half full when opened.  Manufacturer should either fill the container or use a smaller container.
Rating: 2 stars