I have been using this product for several years and have always liked it. I live in the deep South, and the weather is usually moist. Recently, I took a trip to Nevada, a totally opposite environment for me, and I forgot my Collagen Factor. Immediately my skin dried out, and I got raised, crusty patches all over my face. I thought it might be a form of eczema since I'd never experienced anything like this. I ordered a new bottle and to my surprise and relief all the crusty patches disappeared in one application of the recommended 15 drops. My skin returned to its absolute normal state. This was remarkable, and that is exactly what I think of the product - remarkable.
Barbara North - WY