I have been using the BioTRUST Ageless Collagen Booster now for 18 days. This is what I have noticed.....less itchy skin, less flaky skin, my finger nails are peeling less ( i have always had issues with the layers peeling ), the cuticle area around my finger nails is looking more healthy, I seem to see some hair growth at the crown of my head! Also less hair being lost when I brush.....these are are incredible changes in just 18 days. You could say I am a believer! Having added just 2 capsule of Collagen Booster to my daily supplements I have seen amazing changes.