Three weeks in and my nails are noticeably less brittle, which is a huge win since mine usually split at the slightest bump. The powder dissolves cleanly in my morning coffee, no clumps or weird grit at the bottom. It's the kind of subtle improvement that makes me want to keep buying it.
It mixes easily into my morning coffee without any clumps, and the powder itself has no weird taste, which I appreciate. That said, I’ve been taking it for over a month now and haven't noticed any real change in my skin dryness or nails, so it's fine but nothing special.