The Jury is Out

I've been using Inkey List Collagen Booster now for one week and so far, the jury is out. The bottle is rather tiny, although the price is fairly low too (around $10 for 30 ml). A pea-sized amount is to be smoothed over the face twice per day. It goes on nicely and leaves no sticky residue, so far, so good. No breakouts from it (and I have sensitive skin). But it is not proving effective so far. I will use the entire bottle before deciding whether or not to re-purchase. Perhaps the results take longer than a week to show? Time will tell.