I recently tried the Riversol 15 Day Anti-Aging Sample Kit, and while I did notice some improvement in my skin's texture and tone during the trial period, I didn't experience any drastic results. The products felt gentle and didn't cause any irritation, which is a plus. However, I didn't see a significant reduction in fine lines or wrinkles within the 15-day timeframe. It might be worth considering a longer trial or continued use to determine its full effects.