I started with this mini travel set around the last week of November 2023. I saw immediate results the next morning in the tone of my skin. After 2 weeks of use I saw a major improvement in fine lines, texture and overall smoothness of my skin. I'm 52 for reference. I was so excited after just 2 weeks of using this little powerhouse bundle twice a day that I went back and purchased thr full size products and added the cleaner too. Before MD Aire, I was using Skin Better Science. And although I had seen overall improvement over the months I had been using it, the results were not nearly as significant as the MD Aire. The one thing I was not sure of in the begging was the NMF Hydrator. Here in the Virginia Beach araa, the winter can be harsh and dry. After using everything for 2 weeks and twice a day, I realized that my skin had adjusted and a heavier cream really wasn't needed. The products are expensive but worth every penny. I plan to budget for the cost of one product per month even though the bottle will last probably 3 months or more since I only use 1 pump of each twice per day. Just wanted to mention this to help anyone else who might be on a tight budget but still want to maintain their youthful skin.